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Exercise 5.1.9

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The sample mean $μ = 20$ , the same variance $S^{2} = 0$ . If $x = 20$ or 21, 12 times each, then we have $μ = 20 * 12 + 21 * 1224 = 20.5$ , and $S^{2} = \frac{12 {(20 - 20.5)}^{2} + 12 {(21 - 20.5)}^{2}}{24 - 1} = \frac{6}{23}$

niuers

2020-03-20 00:00

Exercise 5.1.9

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