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The amount of time you have to wait at a particular stoplight is uniformly distributed between zero and two minutes. a) What is the probability

The amount of time you have to wait at a particular stoplight is uniformly distributed between zero and two minutes.

a) What is the probability that you have to wait more than 30 seconds for the stoplight?

b) What is the probability that you have to wait between 15 and 45 seconds for the stoplight?

c) Eighty percent of the time, the stoplight will change before you have to wait X seconds, what is the value of X?

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