Question: 13.7.8 ( X_{n} ) is an iid random sequence with ( mathrm{E}left[X_{n} ight]=0 ) and ( operatorname{Var}left[X_{n} ight]=3 ). Find the antocorrelation function ( mathrm{CY}_{gamma}[n,

13.7.8 ( X_{n} ) is an iid random sequence with ( mathrm{E}left[X_{n} ight]=0 ) and ( operatorname{Var}left[X_{n} ight]=3 ). Find the antocorrelation function ( mathrm{CY}_{gamma}[n, k] ) of the process ( Y_{n}=X_{n-1} X_{n} )

13.7.8 X, is an iid random sequence with E[X] 0 and Var[X]= 3. Find the auto- correlation function Cy [n, k] of the process Y-X-1X.

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