Question: Let mX(t) = p + 0.5et + (0.5 p)et be a mgf of a variable X. Determine possible values of p and find Var(X27)

Let mX(t) = p + 0.5e−t + (0.5 − p)et be a mgf of a variable X. Determine possible values of p and find Var(X27) as a function of p.

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