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7. (5 points) Let {Xi}=1 be independent standard normal random variables. Let Y = (X1 +X3 +X5+X7)2 + (X2 +X4+X6+X8)2- Determine a value c such

7. (5 points) Let {Xi}=1 be independent standard normal random variables. Let Y = (X1 +X3 +X5+X7)2 + (X2 +X4+X6+X8)2- Determine a value c such that the random variable CY will have a X2 distribution

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