Solved

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

Question 122

Multiple Choice

At an automatic car wash,cars arrive randomly at a rate of 7 every 30 minutes.The car wash takes exactly 4 minutes (this is constant) .On average,how many customers would be at the car wash (waiting in line or being serviced) ?


A) 8.17
B) 7.46
C) 6.53
D) 0.46
E) None of the above

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