For each Î» > 0, let XÎ» be a random variable with exponential density Î»

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For each Î» > 0, let XÎ» be a random variable with exponential density Î»e-Î»x on(0,âˆž). Then, Var(log XÎ»)

Options:

A . is strictly increasing in Î»

B . is strictly decreasing in Î»

C . does not depend on Î»

D . first increases and then decreases in Î»

Answer: Option C

-NA-

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