The scheduled commuting time on the Long Island Railroad from Glen Cove to New York City is

Question:

The scheduled commuting time on the Long Island Railroad from Glen Cove to New York City is 65 minutes. Suppose that the actual commuting time is uniformly distributed between 64 and 74 minutes. What is the probability that the commuting time will be
a. Less than 70 minutes?
b. Between 65 and 70 minutes?
c. Greater than 65 minutes?
d. What are the mean and standard deviation of the commuting time?