Question: Let X be a random variable with E(X) = μ and V (X) = σ2. Show that the function f(x) defined by f ia)-() -

Let X be a random variable with E(X) = μ and V (X) = σ2. Show that the function f(x) defined by

f ia)-Σχ(ω) - )
Has its minimum value when x = μ.

f ia)-() - )"p) f(x)

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