How many minutes are needed for the probability to reach 50%

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Between 12:00 Pm and 1:00 PM, Cars arrive at Citibank's drive-thru at the rate of 6 cars per hour. (0.1 car per minute) The following formula from statistics can be used to determine that a car will arrive within t minutes of 12:00 PM.
F(t) =1-e^-0.1r

a. determine how many minutes are needed for the probability to reach 50%
b.determine how many minutes are needed for the probability to reach 80%
c Is it possible for the probability to reach 100%? Explain.

Reference no: EM13177390

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