The probability that patient recovers from a delicate heart operation is 0.9. What is the probability that exactly 5 of the next 7 patients having this operation survive?
The probability that patient recovers from a delicate heart operation is 0.9. What is the probability that exactly 5 of the next 7 patients having this operation survive?
This is a binomial probability problem. Given the probability that something occurs is p, then the probability that the thing does not occur is (1- p). And the probability that p occurs exactly k times out of n trials is:
For your problem p = 0.9, k = 5 and n = 7. Can you take it from here?
All times are GMT -7. The time now is 06:34 PM. |