Between 5:00 pm and 6:00 pm, cars arrive at McDonalds
Chapter 5, Problem 109(choose chapter or problem)
Between 5:00 pm and 6:00 pm, cars arrive at McDonalds drive-thru at the rate of 20 cars per hour. The following formula from probability can be used to determine the probability that x cars will arrive between 5:00 pm and 6:00 pm. P1x2 = 20x e-20 x! where x! = x # 1x - 12 # 1x - 22 # g# 3 # 2 # 1 (a) Determine the probability that x = 15 cars will arrive between 5:00 pm and 6:00 pm. (b) Determine the probability that x = 20 cars will arrive between 5:00 pm and 6:00 pm.
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