Question: 2. Use the data sample below to answer the following questions. Exi = 220 (x - X)2 = 440 (x- X(Y- n) =-568 YA =

2. Use the data sample below to answer the following questions. Exi = 220 (x - X)2 = 440 (x- X(Y- n) =-568 YA = 385 E( - n) = 1120 7 = 11 A. Calculate the sample mean, variance, and standard deviation...

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