Question

A group of 30 people consists of 15 children, 10 men, and 5 women. Tom and Jerry are two of the men in the group.

Five people are picked at random without replacement.

Find the chance the first person picked is a man, given that the fourth and fifth people picked are children.


Find the chance that more than two women are picked.


Find the chance that Tom and Jerry both get picked.

Answer 1

1. If it is the first pick, it doesn't matter what the subsequent picks are, 10/30.

Answer 2

Do you understand that?

Answer 3

ohh not sure

Answer 4

so what is the exact answer

Answer 5

Well, this is for the first question, if there are 30 people all together, the chances that a man is chosen would be expressed by the fraction 10/30.

Answer 6

its wrong

Answer 7

Are you told to find the percent?

Answer 8

The right answer is 10/28. I know, because I took the same exam.

Answer 9

the last one is 0.00876

Answer 10

0.00876 is wrong

Answer 11

oh. well, that's where I got stuck. any ideas?

Answer 12

Find the chance that more than two women are picked. Find the chance that Tom and Jerry both get picked.

Answer 13

C. 0.0229 is the correct one