Mathematics, 27.11.2019 02:31, shawnacusteroyspr8

One hundred items are simultaneously put on a life test. suppose the lifetimes of the individual items are independent exponential random variables with mean 200 hours. the test will end when there have been a total of 5 failures. if t is the time at which the test ends, find e[t ] and var(t ).

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One hundred items are simultaneously put on a life test. suppose the lifetimes of the individual ite...