Ononot — Let X be a random variable with MGF MX(t) = \frac{e^{5t}}{1

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Random Variableshard

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Let $X$ be a random variable with MGF $M_X(t) = \frac{e^{5t}}{1 - 4t}$ for $t < 0.25$ . Calculate $E[X^2]$ .