Question: A car mechanic, Carlos, is able to install new mufflers at an average rate of 1 every 20 minutes (following an exponential distribution). Customers needing

A car mechanic, Carlos, is able to install new mufflers at an average rate of 1 every 20 minutes (following an exponential distribution). Customers needing this service arrive at the shop (following a Poisson distribution) on an average of 2 per hour. If a car arrives at the shop, what is the probability that it will not have to wait to be serviced?

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