A math teacher gave her class two tests. 76% of the class passed the first test. 58% of the class passed both tests. What is the approximate probability that a student who passed the second test, given that he passed the first test.

Question

Kate Guzman

25 March, 00:45

+4

Answers (1)

Know the Answer?

Lucy Berg · Answer 1

P (test 2 | test 1) = P (test 2∩test 1) : P (test 1)

P (test 2 | test 1) = 0.58 : 0.76

P (test 2 | test 1) = 0.76 ≈ rounded to two decimal places