Question: The random sample X1, X2, X25 is obtained from an experiment in which the distribution is believed to be normal, The average ofthe Xi is

The random sample X1, X2, X25 is obtained from an experiment

The random sample X1, X2, X25 is obtained from an experiment in which the distribution is believed to be normal, The average ofthe Xi is found to be 7.1 and the average of the X? is found to be 78.95. Determine the value of the unbiased estimator 52 otthe variance

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