FabSwingers.com forum: Help with a maths problem, and should teachers get detention.

By (user no longer on site) OP
over a year ago

My youngest lad had an issue at school today with his maths teacher.

The question was :

If the odds of having twins is 5000:1

then what is the probability of Roger Federer ( probably a timely and attempt at keeping it real situation) of having two sets of twins.

My lad said he answered : One.

The upshot of it is, the teacher disagreed, a heated discussion ensued and ended with the teacher giving him a detention.

I think he's correct so :

1) can anyone confirm this, and

2) if so, and the teacher is wrong, should the teacher receive a detention or similar?

Reply privately

Reply in forum

Reply +quote

By *effrey45Man
over a year ago

Lytham

How can the likelihood of having 2 sets of twins be 1 ffs??

The odds of him having 2 sets of twins is a multiple of the odds

5x5 k

= 25,000/1

Reply privately

Reply in forum

Reply +quote

By *al2001Man
over a year ago

kildare

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

On the first pregnancy the odds would be 5000-1

On the second pregnancy the odds would be 5000-1.

I'm sorry but I don't understand your sons answer of 1.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

I'm going to have to agree with the others on this.

Thought it was going to be tougher than that when i saw the title!

Anything harder?

Reply privately

Reply in forum

Reply +quote

By *oxy_minxWoman
over a year ago

Scotland - Aberdeen

"On the first pregnancy the odds would be 5000-1

On the second pregnancy the odds would be 5000-1.

I'm sorry but I don't understand your sons answer of 1. "

I am in agreement with this

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

Ask yourselves this :

How many sets of twins DOES Federer actually have?

The answer is 2.

So the probability is surely 1.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

25,005,000/1 the odds are

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Ask yourselves this :

How many sets of twins DOES Federer actually have?

The answer is 2.

So the probability is surely 1.

Can you get odds of 1 ?

Reply privately

Reply in forum

Reply +quote

By *rightonsteveMan
over a year ago

Brighton - even Hove!

An Academy, is it?

Reply privately

Reply in forum

Reply +quote

By *ittle_brat_evie!!Woman
over a year ago

evesham

Ask yourselves this :

How many sets of twins DOES Federer actually have?

The answer is 2.

So the probability is surely 1.

Ah so he was arguing the semantics of the question rather than the mathematics.

Did he get detention for geating the answer wrong or being insubordinate?

Reply privately

Reply in forum

Reply +quote

By *effrey45Man
over a year ago

Lytham

Yeh but the question asks about 1 couple having 2 sets

Imagine roger is short of a bob or two and goes to the bookies and puts a quid on

He would get £5000 if it comes in

But he is going for a double

£5000 at 5000/1 is actually £25million!

It's been a long day

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"25,005,000/1 the odds are"

But if the odds are 5000-1 for one pregnancy these would not multiply for second pregnancy. The odds would be exactly the same.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Ask yourselves this :

How many sets of twins DOES Federer actually have?

The answer is 2.

So the probability is surely 1.

I truly don't understand the probability being 1

1-1 ?

Evens ?

Reply privately

Reply in forum

Reply +quote

By *ittle_brat_evie!!Woman
over a year ago

evesham

"25,005,000/1 the odds are

But if the odds are 5000-1 for one pregnancy these would not multiply for second pregnancy. The odds would be exactly the same. "

For each pregnancy but the odds of one couple having two sets of twins from 2 pregnancies are higher...i just don't know.how much higher lol

Reply privately

Reply in forum

Reply +quote

By *effrey45Man
over a year ago

Lytham

Prob best either send his maths teacher a link to the forum or screen print this discussion and stuck it in his maths book

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

"Yeh but the question asks about 1 couple having 2 sets

Imagine roger is short of a bob or two and goes to the bookies and puts a quid on

He would get £5000 if it comes in

But he is going for a double

£5000 at 5000/1 is actually £25million!

It's been a long day "

You can say that again.

So, if Federer goes to the bookies and asks to put a £1 on him having two sets of twins, they're gonna give him £25m.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Its also posible for the woman to get 4 or even 8 kids lol.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"How can the likelihood of having 2 sets of twins be 1 ffs??

The odds of him having 2 sets of twins is a multiple of the odds

5x5 k

= 25,000/1"

That's the right odds -

It's the probability of one twins AND (x) the probability of second twins = probability of two sets of twins = 1/5000 X 1/5000 = 1/25000

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

at 5000:1 X 5000:1, (which is saying what are the chances of 2 1-in-a-5000 occurring sequentially, then it's be (5000*5000)=25000000:1 (ie: pretty darned unlikely). if the chances were for twins this time OR next time, then (5000+5000) = 10000:1.

a probability of 1:1 is certainty (like biological death for example), so in that maths puzzle this is not possible.. the chances were explicity stated as being sub-unity.

so, in the scope of the puzzle, afraid your son's answer of 1:1 isn't possible

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"Yeh but the question asks about 1 couple having 2 sets

Imagine roger is short of a bob or two and goes to the bookies and puts a quid on

He would get £5000 if it comes in

But he is going for a double

£5000 at 5000/1 is actually £25million!

It's been a long day

You can say that again.

So, if Federer goes to the bookies and asks to put a £1 on him having two sets of twins, they're gonna give him £25m.

No they wouldn't as he has one set of twins already so he would get £5000

Reply privately

Reply in forum

Reply +quote

By *ittle_brat_evie!!Woman
over a year ago

evesham

"at 5000:1 X 5000:1, (which is saying what are the chances of 2 1-in-a-5000 occurring sequentially, then it's be (5000*5000)=25000000:1 (ie: pretty darned unlikely). if the chances were for twins this time OR next time, then (5000+5000) = 10000:1.

a probability of 1:1 is certainty (like biological death for example), so in that maths puzzle this is not possible.. the chances were explicity stated as being sub-unity.

so, in the scope of the puzzle, afraid your son's answer of 1:1 isn't possible

Saved me typing

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

i assume the detention wasnt for the incorrect answer but for the 'heated' discussion -

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"How can the likelihood of having 2 sets of twins be 1 ffs??

The odds of him having 2 sets of twins is a multiple of the odds

5x5 k

= 25,000/1

That's the right odds -

It's the probability of one twins AND (x) the probability of second twins = probability of two sets of twins = 1/5000 X 1/5000 = 1/25000"

Typo it should read 1/25,000,000

Reply privately

Reply in forum

Reply +quote

By *xxwiganMan
over a year ago

LEIGH

if the question is set before federer had any children the odds of two sets of twins is (5000 x 5000)25000000:1

if you assum he already has the first set of twins then the odds of a second set is 5000:1 since the first event has already happened.

however, if someone has already had a set of twins naturally the odds of a second set are shorter.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

A couple in Scotland have 3 sets of twins wonder what the odds of that are

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Having a girl or a boy is a even money bet

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"How can the likelihood of having 2 sets of twins be 1 ffs??

The odds of him having 2 sets of twins is a multiple of the odds

5x5 k

= 25,000/1"

watch out for the orders of magnitude

the puzzle is 5000 lots of 5000, not 5 lots of 5000

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

a probability of 1:1 is certainty (like biological death for example), so in that maths puzzle this is not possible.. the chances were explicity stated as being sub-unity.

so, in the scope of the puzzle, afraid your son's answer of 1:1 isn't possible

So if a probability of 1 applies to a certainty eg Death

then is it not also a certainty that Federer DOES actually have two sets of twins? A certainty?

Unless the BBC News have been lying to us.

Reply privately

Reply in forum

Reply +quote

By *abioMan
over a year ago

Newcastle and Gateshead

technically the answer would be 25 followed by 6 zero's.. 25,000,000/1... 25 million....

however... the answer could be 5000/1 as the 2nd one is in no way determined by the 1st one...

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

"i assume the detention wasnt for the incorrect answer but for the 'heated' discussion - "

It would appear so. But if the teacher is wrong, and doesn't know their subject, then surely they're to blame.

Gonna be interesting to see what the Headteacher has to say.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

a probability of 1:1 is certainty (like biological death for example), so in that maths puzzle this is not possible.. the chances were explicity stated as being sub-unity.

so, in the scope of the puzzle, afraid your son's answer of 1:1 isn't possible

So if a probability of 1 applies to a certainty eg Death

then is it not also a certainty that Federer DOES actually have two sets of twins? A certainty?

Unless the BBC News have been lying to us."

hehe you're right in reality, but that wasn't part of the puzzle. maybe they should have used someone else's name

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Ask yourselves this :

How many sets of twins DOES Federer actually have?

The answer is 2.

So the probability is surely 1.

Can you get odds of 1 ?"

Of course, in betting terms 1/1 is called evens.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

"A couple in Scotland have 3 sets of twins wonder what the odds of that are

If you're telling the truth, that it is factual, then surely 1:1.

Ask any bookies on what odds they'd give you that "A couple in Scotland have 3 sets of twins".

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

My mum had 2 sets of twins. I'm feeling like one in 25 million at the moment

Reply privately

Reply in forum

Reply +quote

By *al2001Man
over a year ago

kildare

The answer is always 42

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"technically the answer would be 25 followed by 6 zero's.. 25,000,000/1... 25 million....

however... the answer could be 5000/1 as the 2nd one is in no way determined by the 1st one..."

that's right, true chance never take into account any previous history (like a roulette wheel), but it is 25000000:1, as we're stating the mathematical chances of 2 slim-chance events which to occur successfully one after the other is 25 times less likely than a one in a million shot.. in fact you're more likely to win the national lottery, probably

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

however... the answer could be 5000/1 as the 2nd one is in no way determined by the 1st one..."

This is how I saw it.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"The answer is always 42"

lol.. of course! lol

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Probability theory agrees with the 25,000,000/1 figure as the ods of such an event do in fact multiply with each occurrence, this is easisly Googled. Because it is a biological issue, I suspect if there is a family propensity for twins on either side, it would shorten the odds somewhat.

The answer cannot be 1 very simply because a probability is not expressed as a single figure. It is expressed as n/1 in the form of betting odds. as the only interpretation of "1" would be 1/1 or as somebody stated, "Evens" this is obviously wrong as it expresses odds much lower than the probability for one set of twins

All this can be Googled, search under "Probability Theory".

Reply privately

Reply in forum

Reply +quote

By *abioMan
over a year ago

Newcastle and Gateshead

Ask yourselves this :

How many sets of twins DOES Federer actually have?

The answer is 2.

So the probability is surely 1.

Can you get odds of 1 ?

Of course, in betting terms 1/1 is called evens."

okay i see where this is going

so if i said "what are my odds of winning the lottery" you could say it is evens... because it either happens..or it doesnt!!

Reply privately

Reply in forum

Reply +quote

By *rallvalCouple
over a year ago

Dunfermline

The probability in the general population is 5000-1 so therefore two events should be 5000 X 5000.

But in the real world some people have a genetically higher probability of twins. In statistics it is not good to extrapolate from the general to the specific. What it true for the population is not necessarily true for one person.

Finally since Federer already has 2 sets of twins the answer is 1. It is a certainty that he has 2 sets of twins.

If he is meaning another 2 sets of twins then this is not straightforward as he looks like he already has an increased chance of twins so the odds for him will be shorter.

The odds for a population is the average of the odds of all the individuals in that population. Federer seems to have good odds.

Source: I have a maths degree.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

The odds of winning lottery are 13,000,000/1

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

The lad should be applauded for looking at the problem in a different way. He will go far.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Being pedantic it's zero as he is a man

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"The odds of winning lottery are 13,000,000/1"

Actually, it's 14.9 million to one. Again, it can be Googled.

Reply privately

Reply in forum

Reply +quote

By *nsert user name hereMan
over a year ago

Manchester

Wouldn't the odds of a twin birth be lower the second time? As the first time could show they had the necessary genes etc to make it more probable?

Or is that just me trying to complicate the issue?

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"A couple in Scotland have 3 sets of twins wonder what the odds of that are

If you're telling the truth, that it is factual, then surely 1:1.

Ask any bookies on what odds they'd give you that "A couple in Scotland have 3 sets of twins".

yes because the bookies are taking that into account in their calculations.

if you ALREADY have a set of twins, then that is a factual reality, so they are 1:1. the chances of them having another set of twins from THIS POINT onwards is 5000:1.

of course, I have assumed the school quiz was purely hypothetical, and wasnt supposed to take current children into account..

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Ask yourselves this :

How many sets of twins DOES Federer actually have?

The answer is 2.

So the probability is surely 1.

Can you get odds of 1 ?

Of course, in betting terms 1/1 is called evens.

But if the probability is 1 because he already has two sets of twins. And 1 is evens. Then why can't I put my life savings on it and double my money ?

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"Wouldn't the odds of a twin birth be lower the second time? As the first time could show they had the necessary genes etc to make it more probable?

Or is that just me trying to complicate the issue?

hehe.. OK.

in REALITY the quiz is too simplistic. a truer real life measurement would look a t familial history, and other factors to work out a specific probability.. but let's start off easy.. lol

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

"A couple in Scotland have 3 sets of twins wonder what the odds of that are

If you're telling the truth, that it is factual, then surely 1:1.

Ask any bookies on what odds they'd give you that "A couple in Scotland have 3 sets of twins".

yes because the bookies are taking that into account in their calculations.

if you ALREADY have a set of twins, then that is a factual reality, so they are 1:1. the chances of them having another set of twins from THIS POINT onwards is 5000:1.

of course, I have assumed the school quiz was purely hypothetical, and wasnt supposed to take current children into account..

It was an actual lesson and not a school quiz.

The question expressly asked included "the probability of Federer" having 2 sets of twins.

Not the odds/chances nor anyone else.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"The probability in the general population is 5000-1 so therefore two events should be 5000 X 5000.

Finally since Federer already has 2 sets of twins the answer is 1. It is a certainty that he has 2 sets of twins.

If he is meaning another 2 sets of twins then this is not straightforward as he looks like he already has an increased chance of twins so the odds for him will be shorter.

The odds for a population is the average of the odds of all the individuals in that population. Federer seems to have good odds.

Source: I have a maths degree.

Come on let's not get silly.

The question is asking that he had two sets of twins and if you know what the probability of having twins in the general population is, what is the chance he ended up with two sets. That's 1/25,000,000.

And biologically too many variables are involved especially if ivf etc are involved.

Source : one of us is has a physics and one is a surgeon

Reply privately

Reply in forum

Reply +quote

By *xxwiganMan
over a year ago

LEIGH

Ask yourselves this :

How many sets of twins DOES Federer actually have?

The answer is 2.

So the probability is surely 1.

Can you get odds of 1 ?

Of course, in betting terms 1/1 is called evens.

But if the probability is 1 because he already has two sets of twins. And 1 is evens. Then why can't I put my life savings on it and double my money ? "

because you can't bet on events that have already happened.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

Ask yourselves this :

How many sets of twins DOES Federer actually have?

The answer is 2.

So the probability is surely 1.

Can you get odds of 1 ?

Of course, in betting terms 1/1 is called evens.

But if the probability is 1 because he already has two sets of twins. And 1 is evens. Then why can't I put my life savings on it and double my money ? "

Ooooh, does that work with mortgages, double my mortgage, hell yeah.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Agree with your son.

Federer already has two sets of twins.

If he had none and prob of getting one set is I in 5000 = 0.0002 chance,

The fact he already has two sets of twins is chance of 2 in 2 = 1

Wouldn't put teacher in detention though, unless she is very pretty, and not adverse to the cane

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

"The probability in the general population is 5000-1 so therefore two events should be 5000 X 5000.

Finally since Federer already has 2 sets of twins the answer is 1. It is a certainty that he has 2 sets of twins.

If he is meaning another 2 sets of twins then this is not straightforward as he looks like he already has an increased chance of twins so the odds for him will be shorter.

The odds for a population is the average of the odds of all the individuals in that population. Federer seems to have good odds.

Source: I have a maths degree.

Thank you.

Cheeky mode on : A 1:1, a 2:1 or a 2:2

I won't sink to Vordermans level lol

Cheeky mode off.

Reply privately

Reply in forum

Reply +quote

By *xxwiganMan
over a year ago

LEIGH

all very interesting but you can't have a probability of an event that has already happened.

Reply privately

Reply in forum

Reply +quote

By *rallvalCouple
over a year ago

Dunfermline

The answer cannot be 1 very simply because a probability is not expressed as a single figure.

In probability a certainty is expressed as 1.

Probabilities are usually expressed as a decimal so that an evens such as a coin toss is expressed as 0.5 (1/2). Rolling a 6 is 0.1667 (1/6). So a certainty is 1/1 which is 1.

The simplest way to look at it is to multiply the decimal by 100 and call it a percentage chance.

I covered a lot of stats at university. Didn't help one bit at poker though.

Reply privately

Reply in forum

Reply +quote

By *ensualtouch15Man
over a year ago

ashby de la zouch

Ok one will always be wrong. I have no idea how many fed has got but if he had one set already the pure math answer would indeed be 5000 to 1 that's disregarding a known genetic predisposition to multiple births

If fed has already has 2 sets the answer is not one to one as that is a probability of evens suggesting there would be an equal chance he would have none .if the outcome is already known as being suggested there is not a probability question the child was wrong but trying to be smart badly as it's obvious he does not understand probability

As everyone else has said remove the name fed , remove the biological disposition of multiple births being affected by genetic factors and the answer indeed is 5 k times 5k 25000000 ironically such large odds still mean with a world population of billions there would be 40 twin sets of twins per billion xx

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"all very interesting but you can't have a probability of an event that has already happened."

So saying a probability of 1 or evens is incorrect ?

Reply privately

Reply in forum

Reply +quote

By *xxwiganMan
over a year ago

LEIGH

"all very interesting but you can't have a probability of an event that has already happened.

So saying a probability of 1 or evens is incorrect ?"

no, but since the twins are already born you can have a probabity since its already happened. probabilies are only used for future events. eg you can have a probability that manchester city won a football match yesterday but you can have a probability for manchester city winning a game on sunday.

Reply privately

Reply in forum

Reply +quote

By *rallvalCouple
over a year ago

Dunfermline

Come on let's not get silly.

And biologically too many variables are involved especially if ivf etc are involved.

Source : one of us is has a physics and one is a surgeon"

I absolute agree but the teacher muddied the waters by adding a name of a person with 2 sets of twins already.

If he had just said Joe Bloggs it would have been simple.

Given the question I would have said 1 as well.

Reply privately

Reply in forum

Reply +quote

By *mm_n_ZedCouple
over a year ago

Fareham

My head hurts!

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

Come on let's not get silly.

And biologically too many variables are involved especially if ivf etc are involved.

Source : one of us is has a physics and one is a surgeon

I absolute agree but the teacher muddied the waters by adding a name of a person with 2 sets of twins already.

If he had just said Joe Bloggs it would have been simple.

Given the question I would have said 1 as well."

Next question, should i show the Headteacher this thread as proof?

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

There would be

200,000 per billion of twins

Reply privately

Reply in forum

Reply +quote

By *uud 4-funMan
over a year ago

Dartford

"On the first pregnancy the odds would be 5000-1

On the second pregnancy the odds would be 5000-1.

I'm sorry but I don't understand your sons answer of 1. "

By stating the name 'Roger Federer' in the question the teacher has narrowed the sample down to one person who we do know has just become a father to a second set of twins so it is 100% certain 1:1 probability.

As to whether your son deserves detention, it depends on how he put his point accross. Let's be honest was it REALLY just because he disagreed with the staff answer?

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Come on let's not get silly.

And biologically too many variables are involved especially if ivf etc are involved.

Source : one of us is has a physics and one is a surgeon

I absolute agree but the teacher muddied the waters by adding a name of a person with 2 sets of twins already.

If he had just said Joe Bloggs it would have been simple.

Given the question I would have said 1 as well.

Next question, should i show the Headteacher this thread as proof?"

Lol

Jokes aside, regardless of who it is, the chances the ended up with that outcome are the same.

Reply privately

Reply in forum

Reply +quote

By *ensualtouch15Man
over a year ago

ashby de la zouch

"On the first pregnancy the odds would be 5000-1

On the second pregnancy the odds would be 5000-1.

I'm sorry but I don't understand your sons answer of 1.

As to whether your son deserves detention, it depends on how he put his point accross. Let's be honest was it REALLY just because he disagreed with the staff answer?

Must make this Absolutely clear

100% certain does not equate

1:1 probability

A flip of a coin is 1:1 that it will land heads

One is wrong . The kid was wrong x

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

Thanks everyone.

I'm going with 00Marc and Travall on this.

I also reckon the probability of serving this detention is 0, zero.

Now, what are the odds on that coming to fruition?

Reply privately

Reply in forum

Reply +quote

By *ing and RideCouple
over a year ago

stockport

i think schools should set up a bookies in a room and teach kids how to bet....far more interesting than boring maths...learn about odds, 50p each way bets....they will be excelling in maths grying to work it out. down side is they will be addicted to betting by 16 but will have excellent math skills.

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"On the first pregnancy the odds would be 5000-1

On the second pregnancy the odds would be 5000-1.

I'm sorry but I don't understand your sons answer of 1.

As to whether your son deserves detention, it depends on how he put his point accross. Let's be honest was it REALLY just because he disagreed with the staff answer?

Must make this Absolutely clear

100% certain does not equate

1:1 probability

A flip of a coin is 1:1 that it will land heads

One is wrong . The kid was wrong x"

Flipping a coin is a 2 to 1 chance, ie 0.5

Reply privately

Reply in forum

Reply +quote

By *ensualtouch15Man
over a year ago

ashby de la zouch

Don't quote me on this I think zero may have been correct as in

0:1

Ie zero possibilities that fed could not have two sets of twins the first number is always the total no of possibilities

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Thanks everyone.

I'm going with 00Marc and Travall on this.

I also reckon the probability of serving this detention is 0, zero.

Now, what are the odds on that coming to fruition?"

go in and argue his case. Take it to the head of maths

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Who's Roger Federer?

Reply privately

Reply in forum

Reply +quote

By *ensualtouch15Man
over a year ago

ashby de la zouch

"On the first pregnancy the odds would be 5000-1

On the second pregnancy the odds would be 5000-1.

I'm sorry but I don't understand your sons answer of 1.

As to whether your son deserves detention, it depends on how he put his point accross. Let's be honest was it REALLY just because he disagreed with the staff answer?

Must make this Absolutely clear

100% certain does not equate

1:1 probability

A flip of a coin is 1:1 that it will land heads

One is wrong . The kid was wrong x

Flipping a coin is a 2 to 1 chance, ie 0.5"

Apologies to all I'm wrong

Reply privately

Reply in forum

Reply +quote

By *nnejohnCouple
over a year ago

warrington

evens is actually a 1 in 2 bet,mathematically expressed as 1/2.

a certainty is 1/1,as there is only 1 p0ssible outcome

Reply privately

Reply in forum

Reply +quote

By *adyGardenWoman
over a year ago

LONDON (se)

Well the odds on this change depending on genetics so is quite a broad spectrum question that has many interpretations.

Odds increase if twins already exist in the family and increase again if on both sides of the family. Genetically the chances of a second set of twins goes down.

1 is most certainly not the answer. As that equates to 1 in 2. You either do or you don't which is how your son is seeing it I guess.

Sometimes when science and maths come together there is no right answer really

Reply privately

Reply in forum

Reply +quote

By *hyllyphyllyMan
over a year ago

Bradford

(I googled)

While there was no conclusive agreement on the exact odds, the internet provided a wide variety on the chances of parents having two sets of twins, ranging from 3,000-1 to 700,000-1.

Reply privately

Reply in forum

Reply +quote

By *nnejohnCouple
over a year ago

warrington

a probability of 1 is not 1 in 2,its 1 in 1,ie certainty

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Why did he get detention

Why did the teacher argue

Doesnt seem fair

Reply privately

Reply in forum

Reply +quote

By *lassyandadventurousMan
over a year ago

England and Wales

Just tell the teacher hes a wanker and give him a right hander.

Whats the odds on that ?

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

Did the teacher get the cane?

Her

Reply privately

Reply in forum

Reply +quote

By (user no longer on site) OP
over a year ago

"Just tell the teacher hes a wanker and give him a right hander.

Whats the odds on that ?"

Judging by the word he used to describe part of the teachers anatomy, i'd say that he's actually a she teacher.

Reply privately

Reply in forum

Reply +quote

By *ranny-CrumpetWoman
over a year ago

The Town by The Cross

The probability of Roger Federer having 2 sets of twins is 0. He is male.

Also ....... are they fraternal twins or identical twins? i.e. is it the mother or the father that carries the 'twin' producing biology ?

Does anyone else in Federers wife's family have twins ?

Reply privately

Reply in forum

Reply +quote

By *ranny-CrumpetWoman
over a year ago

The Town by The Cross

"Just tell the teacher hes a wanker and give him a right hander.

Whats the odds on that ?

Judging by the word he used to describe part of the teachers anatomy, i'd say that he's actually a she teacher."

What word did he use to describe the teacher's anatomy ?

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"Just tell the teacher hes a wanker and give him a right hander.

Whats the odds on that ?

Judging by the word he used to describe part of the teachers anatomy, i'd say that he's actually a she teacher.

What word did he use to describe the teacher's anatomy ?"

The bloke that taught us maths was a c*nt. If that helps...

Canis, your lad was mathematically correct...

The odds of a certainty are 1:1...

The probability is 1... However, what are the odds that your lad got his detention for being Lippy... And what is the probability that his detention will be overruled...???

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"My mum had 2 sets of twins. I'm feeling like one in 25 million at the moment

think this makes you extra special xx

Reply privately

Reply in forum

Reply +quote

By (user no longer on site)
over a year ago

"My mum had 2 sets of twins. I'm feeling like one in 25 million at the moment

think this makes you extra special xx"

Just remember... If you are One in a Million, there are over 7000 of you on the planet...

Reply privately

Reply in forum

Reply +quote

Post new Message to Thread