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A train has a 60% departure on time rate, and a random sample of 25 actual...

A train has a 60% departure on time rate, and a random sample of 25 actual departure times is taken.

(a) Find the probability that no more than 5 are on time.

(b) Find the probability 9 or more leave on time.

(c) Find the probability a minimum of 7 leave on time

Math   Statistics-And-Probability   
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