Let X1, X2,... be independent Exponential (3) random variables and Z = } E=1 X;. If Mz (t) is the mgf of Z then Mz (10)

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A: It is an important part of statistics. It is widely used.

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A: Disclaimer: " Since, you have asked a question with more than 3 sub-parts. As per guideline we can…

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Q: (a) (b) Find E(W). Find Var(W).

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