Between 5:00 PM and 6:00 PM, cars arrive at McDonald's drive-thru at the rate of 20 cars
Question:
where
(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.
Transcribed Image Text:
P(x) = 20-%e-20 x!
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