q1-  Collina's Italian Cafe in Houston, Texas, advertises that carryout orders take about 25 minutes. Assume that the time required for a carryout order to be ready for customer pickup has an exponential distribution with a mean of 25 minutes. What is the probability that a carryout order will be ready within 20 minutes?

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Collina's Italian Cafe in Houston, Texas, advertises that carryout orders take about 25 minutes. Assume that the time required for a carryout order to be ready for customer pickup has an exponential distribution with a mean of 25 minutes.

What is the probability that a carryout order will be ready within 20 minutes?

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