Question: 3 - ( 2 5 pts ) On a segment of a freeway, the average speed is calculated and identified as 8 0 mph .

3-(25 pts) On a segment of a freeway, the average speed is calculated and
identified as 80 mph . Knowing that the standard deviation of speed at this
segment is 5 mph , please answer the following questions:
a. What is the probability of observing a vehicle with a speed of 75 mph or
less?
b. What is the probability of observing a vehicle with a speed of 65 mph or
more?
c. What is the probability of observing a vehicle with a speed between 65
mph and 75 mph ?
3 - ( 2 5 pts ) On a segment of a freeway, the

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