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If X1, X2, X3, X4 are i.i.d. normal, with X1 = 4, X2 = 4, X3 = 5, and X4 = 10, what is the

If X1, X2, X3, X4 are i.i.d. normal, with X1 = 4, X2 = 4, X3 = 5, and X4 = 10, what is the maximum likelihood estimator for the variance o? ? O a. 2.87 O b. 5.75 O c. 6.19 O d. 8.25 O e. 10.33

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