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 0.11. Given that a battery has lasted 10 hr, find the probability that it will last 15 hr or more.

Question

anonymous · Answer

.11

anonymous · Answer

how did u get the answer ?

anonymous · Answer

the probability that it will last 15 hr or more is 0.11.

anonymous · Answer

what about this one 


The probability that a battery will last 10 hr or more is 0.8, and the probability that it will last 15 hr or more is 0.14. Given that a battery has lasted 10 hr, find the probability that it will last 15 hr or more.