Suppose that the commuting time of a particular train is uniformly distributed between 69-89 minutes

Suppose that the commuting time of a particular train is uniformly distributed between 69-89 minutes. a) what is the probability the commuting time will be less than 74 minutes? b) what is the probability the commuting time will be between 75 and 83 minutes? c)What is the probability the commuting time will be more than 86 minutes? d) what are the mean and standard deviation of commuting time?

 

 

 

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