Question: Question 3 Let X1, . .., X125 be identically distributed independent random variables with Var(X; ) = 1. What is the standard deviation of their

Question 3 Let X1, . .., X125 be identically distributed independent

Question 3 Let X1, . .., X125 be identically distributed independent random variables with Var(X; ) = 1. What is the standard deviation of their average X _ Alt...+X1212 121

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