Question

The probability that a battery will last 10 hr or more is 0.9, and the probability that it will last 15 hr or more is 0.13. given that a battery has lasted 10 hr, find the probability that it will last 15 hr or more. (round your answer to three decimal places.)

Answer 1

P(B|A) = P(B)/P(A) = 0.11/0.7 = =.157