Use the fact that (n-1)S^2/0^2 is a chi square random variable with n-1 df (degrees of freedom) to prove that Var(8²)=2 . HINT: Use the fact that variance of a chi square random variable with k df is 2k.

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Use the fact that (n-1)S^2/0^2 is a chi square random variable with n-1 df (degrees of freedom) to prove that
Var({s² ) = 20
. HINT: Use the fact that variance of a chi square random variable with k df is 2k.
Transcribed Image Text:Use the fact that (n-1)S^2/0^2 is a chi square random variable with n-1 df (degrees of freedom) to prove that Var({s² ) = 20 . HINT: Use the fact that variance of a chi square random variable with k df is 2k.
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