Let M₁ (2) and M₂(z) be the m.g.f. of r.v.'s X₁ and X2, respectively. M₂(0) and M₁ (0) > M" (0). Which of the following statements is true? Suppose that M₁(0) = The mean of X₁ is greater than the mean of X₂ The variance of X₁ is equal to the variance of X₂. The variance of X₁ is greater than the variance of X2. The variance of X₁ is less than the variance of X₂

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