Question: Suppose you randomly sample n = 12 observations from a discrete distribution with the following probability function: Determine E(X) and 2 X . X:

Suppose you randomly sample n = 12 observations from a discrete distribution with the following probability function:

X: 1 2 34 p(x): 0.2 0.1 0.5 0.2

Determine E(X¯) and σ
2 X¯
.

X: 1 2 34 p(x): 0.2 0.1 0.5 0.2

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