A Trucking Firm Has Five Trucks That Each Requires Service

A trucking firm has five trucks that each requires service at an average rate of once every 50 hours, according to an exponential distribution. The firm has a mechanic who needs five hours to complete the average job with exponential service times.
-Use the information in Scenario C.5.What is the probability that there will be no trucks in the system?

A) Less than or equal to 0.50
B) Greater than 0.50 but less than or equal to 0.60
C) Greater than 0.60 but less than or equal to 0.70
D) Greater than 0.70

Correct Answer:

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