The random variable x represents the number of boys in a family of three children. Assuming that boys and girls are equally​ likely, find the mean and standard deviation for the random variable x.   x ​P(x)   0 0.125   1 0.375   2 0.375   3 0.125

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A: Solution: Given information: n= 100 Sample size  μ=50  Population mean σ= 5 Population standard…

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Q: (Simplify your answer.) (Simplify your answer.)

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Q: The variance of a population is 5. The size of the sample collected from a population is 225. What…

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A: We have given that the population has a mean 90 and  a standard deviation 30.

Q: Assume the samples are random and independent, the populations are nomally distributed, and the…

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