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At an Automatic Car Wash, Cars Arrive Randomly at a Rate

Question 118

Multiple Choice

At an automatic car wash, cars arrive randomly at a rate of 7 cars every 30 minutes.The car wash takes exactly 4 minutes (this is constant) .On average, what would be the length of the line?


A) 8.171
B) 7.467
C) 6.53
D) 0.467

Correct Answer:

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