The wait time for service at a local dmv is uniformly distributed from 1 minute to 9 minutes. a. find the probability that a randomly selected person waits 1.5 to 5 minutes. b. find the expected wait time. c. find the standard deviation of the wait time.

a) We fin the probability in a random selected person between 1.5 min and 5 min.

1 to 9 is a interval of 8 minutes.

1.5 to 5 is a interval of 3.5

b) With the formula of Expected Value we can find the time, that is

5 minutes

c) The standar desviation of uniform distribution is given by,

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

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