Question

Help Me!!!

Answer 1

@wolfe8

Answer 2

Oh my how do I even begin to explain this?

Answer 3

Don't ask me?

Answer 4

I think you'll just have to try all the options. See which one comes up to 21%

Answer 5

Uhh...how do I do that??

Answer 6

Will this help? http://www.youtube.com/watch?v=bzvHqVB-40A

Answer 7

The conditional probability that an athlete prefers sports over dancing, given that the athlete is female, is 18/53. How do we calculate that? The number of female athletes is 53; we concentrate only on female athletes because of the condition, "given that the athlete is female." The table shows that 18 out of 53 female athletes prefer sports.

Joint probability means something different. What is the probability that if ONE athlete is chosen at random from the 87 total athletes, that athlete is both female and one who prefers sports?

The conditional probability result above eliminates two of the four answer options. Which ones and why?

Answer 8

I think we would get rid of B and D because we want the athlete to for sure be a female and prefer sports