Mathematics, 08.08.2019 15:10 nooooooooooooooo412

The body paint, an automobile body paint shop, has determined that the painting time of automobiles is uniformly distributed and that the required time ranges between 45 minutes to 11/2hours.
what is the probability that the painting time will be less than or equal to an hour?
what is the probability that the painting time will be more than 50 minutes?
determine the expected painting time and its standard deviation.

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