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  3. the random variable x represents the number of boy

The random variable x represents the number of boys in a family of three children...

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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 P x 0 125 0 375 2 0 375 3 0 125 X 0 OA mean 2 25 standard deviation 0 76 OB mean 1 50 standard deviation 0 87 OC mean 1 50 standard deviation 0 76 OD mean 2 25 standard deviation 0 87

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