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7.There is about 70% probability that a truck will be going over the speed limit on I-80 between Cheyanne and Rock Springs, Wyoming. Suppose that

7.There is about 70% probability that a truck will be going over the speed limit on

I-80 between Cheyanne and Rock Springs, Wyoming. Suppose that a random sample of five trucks in this stretch is observed.

a.Make a histogram showing the probability that r = 0, 1, 2, 3, 4, 5 trucks are speeding.

b.Find the mean of this probability distribution.

c. Find the standard deviation of this probability distribution

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