Question

In a college biology class, only half of the class earned a passing grade. Out of all the students, 45% studied and passed. What is the probability of someone having studied, given that they passed?




A. 1%


B. 55%


C. 90%


D. 45%

Answer 1

I think "D"

Answer 2

C. 90%

Answer 3

who u get that?

Answer 4

P(having studies given that they passed) = P(studied and pass) / P(passed) = 0.45/ 0.5 = 0.9

Answer 5

oh ok