Re: Help finding probability

From your question I would try (6C3+6C2)/12C5, but this won't give the answer you need.

Have you left any details out?

Re: Help finding probability

Quote:

Originally Posted by

**benny92000** Here is the problem: A committee of 5 people is to be selected from 6 men an women. If the selection is made randomly, what is the probability that the committee consists of 3 men and 2 women?

The answer is 1260/3003. Help is appreciated. I know the formulas for combinations/permutations, but I don't know how to apply them here.

If the number of men and women before they are selected are known then the probability is

this is a combinations question, as the order that people are selected do not matter, but this doesn't get the answer you need.

Re: Help finding probability

I'm confused are there 12 people total - 6 males and 6 females? Or are there 6 total people, and it's unknown how many are male or female?

If it's 12 total people then the answer should be

But that doesn't give the answer you stated.

If the case is that there are 6 people and their genders are unkown, then

The answer should be

Where x is the number of males in the group.

x can only be 3 or 4, and neither gives the answer you stated.

Are you should you're stating the question correctly?

Re: Help finding probability

I'm sorry guys. 6 men and 9 women... downthesun, what do those parentheses notations man? my book uses them but it never explained them.

Re: Help finding probability

Quote:

Originally Posted by

**benny92000** I'm sorry guys. 6 men and 9 women... downthesun, what do those parentheses notations man? my book uses them but it never explained them.

Fifteen, choose five.

Re: Help finding probability

Quote:

Originally Posted by

**benny92000** I'm sorry guys. 6 men and 9 women... downthesun, what do those parentheses notations man? my book uses them but it never explained them.

Since its 6 men and 9 women the probability is