Exponential Distribution Suppose a certain test is to be tak

Exponential Distribution: Suppose a certain test is to be taken by 3 students independently, and the time requied by any student to complete the test has an exponential distribution with an of 1.5 hours. Suppose that all the three students start the test at 9:00Am, and the first student the complete the test finishes at 10:00Am. Determine the probability that at least one other student will complete the test by 11:00AM.

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