In a class of 33 boys and 8 girls what is the probability of the first and second child to arrive in the morning to be a boy?

Thanks in advance to anybody who answers(Happy)

Printable View

- Dec 5th 2008, 06:01 AMJohnTMaths & Statistics question; probability.
In a class of 33 boys and 8 girls what is the probability of the first and second child to arrive in the morning to be a boy?

Thanks in advance to anybody who answers(Happy) - Dec 5th 2008, 10:37 AMnzmathman

The probability of first two children being boys is assuming each child arrives independently. - Dec 5th 2008, 10:52 AMJohnT
Hey, thanks for taking the time to reply.

I am not big on Maths, and am doing this as a small part of my Sociology course (Statistics), but the answer you gave is exactly the same answer that I gave, 33/41. I thought it might be wrong when I wrote it but wanted to write something rather than nothing.

It is marked wrong. So are we sure that is the right answer? - Dec 5th 2008, 11:10 AMnzmathman
I said is the answer,

ie

- Dec 5th 2008, 12:08 PMmr fantastic
- Dec 5th 2008, 12:48 PMnzmathman
Oops, sorry about that mistake, should have realised there was no replacement (Doh)

- Dec 10th 2008, 07:35 AMJohnt447
Looks like I got a clone lol