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
E) None of the above
Correct Answer:

Verified
Correct Answer:
Verified
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