Question

Alex is taking two courses; algebra and U.S. history. Student records indicate that the probability of passing algebra is 0.37, that of failing U.S. history is 0.37, and that of passing at least one of the two courses is 0.85. Find the probability of the following.

Answer 1

Explanation:

Since the probability of passing at least one course is 0.85, the probability of failing both is:

0.15