SOLUTION: A popular morning radio show offers free entrance tickets to the local boat show to the sixth caller who rings the station with the correct answer to a question. Assume that all ca
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Question 956993: A popular morning radio show offers free entrance tickets to the local boat show to the sixth caller who rings the station with the correct answer to a question. Assume that all calls are independent and have probability p = 0.7 of being correct. Let X be the random variable that counts the number of calls needed to find the winner.
Questions:
(a) What is the probability mass function of X?
(b) What is the probability of finding a winner on the 12th call?
(c) What is the probability that it will take more than ten calls to find a winner? Answer by neovari001(1) (Show Source):
(