In: Math
A) A missile launched from a submarine hits a target with a probability of 0.5. If hits from three missiles are required to destroy the target, What is the probability that 5 missiles will be launched before the target is destroyed? What is the expected number of missiles launched before the target is destroyed?
B) The time in days between consecutive breakdowns of a machine is exponentially distributed with a mean of 5 days. What is the probability that exactly two repairs are needed during a given week? 2
C) You arrive at a bus stop at 10:00 am, knowing that the bus will arrive at some time uniformly distributed between 10:00 and 10:30 am. What is the probability that you will have to wait longer than 5 minutes for the bus to arrive?
D) The time taken to complete an exam follows a normal probability distribution with a mean of 60 minutes and standard deviation of 10 minutes. What is the probability that a randomly chosen student will complete the exam in 50 minutes or longer?
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