6.1.13. Let X₁, X2,..., Xn be a random sample from a distribution with one of two pdfs. If = 1, then f(x;0= 1) = √2e-²/2, -∞ < x < ∞. If 0 = 2, then f(x;0= 2) = 1/[(1 + x²)], -∞ < x < x. Find the mle of 0.

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