Question: A regular six-faced fair die will be rolled three times. Let X be the sum of the numbers rolled. Find. The time it takes for

A regular six-faced fair die will be rolled three times. Let X be the sum of the numbers rolled. Find.

The time it takes for a ferry to reach a summer resort from the mainland is Normally distributed with mean 2 hours and standard deviation 12 minutes. If 9 trips are randomly selected, what is the probability that between 4 and 7, inclusive, will take between 1 hour 45 minutes and 2 hours 15 minutes?

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