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

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The Answer of 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

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