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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

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 variable x. D X P(x ) 0.125 0.375 OFNM 0.375 0.125 O A. mean: 2.25; standard deviation: 0.76 O B. mean: 2.25; standard deviation: 0.87 O C. mean: 1.50; standard deviation: 0.87

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