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Assume the average number of cars arriving at a certain freeway entrance ramp during an hour...

Assume the average number of cars arriving at a certain freeway entrance ramp during an hour is 5. What is the probability that in a given hour no cars will arrive at the ramp?

a. What is the probability that exactly 5 cars will arrive in an hour.

b. What is the probability that more than 5 cars will arrive in an hour?

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Answer #1

Let XNumbe cars prabubi lit CaYs ill arive at therame 1,1 that İn-a-given-hoar-no.Date: more (b) f(X-25 3 2 4 . 616 o 3 840 Prob-that mone-thun-5-ea rs e

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