At an automatic car wash, cars arrive randomly at a rate of 7 every 30 minutes. The car wash takes exactly 4 minutes (th

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answerhappygod
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At an automatic car wash, cars arrive randomly at a rate of 7 every 30 minutes. The car wash takes exactly 4 minutes (th

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At an automatic car wash, cars arrive randomly at a rate of 7every 30 minutes. The car wash takes exactly 4 minutes (this isconstant). 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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