The time between customer arrivals at a furniture store has an approximate expon

Question

The time between customer arrivals at a furniture store has an approximate exponential distribution with mean = 8.8 minutes. Round to 4 decimal places where necessary.] If a customer just arrived, find the probability that the next customer will arrive in the next 6.7 minutes. 0.5330 You are correct. Your receipt no. is 158-6634 (f) Previous Tries If a customer just arrived, find the probability that the next customer will arrive within next 6 to 9 minutes? 0.1461 You are correct. Your receipt no. is 158-6544 PreviousTries If after the previous customer, no customer arrived in next 6 minutes, find the conditional probability that no customer will arrive for 9 minutes. Submit Answer Tries 0/5

Explanation / Answer

for last question conditional probability=P(X>9|X>6) =P(X>9)/P(X>6) =e-9/8.8/e-6/8.8 =0.3596/0.5057 =0.7111

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