Refer to the accompanying table, which describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Find the mean and standard deviation for the number of girls in 8 births. Click the icon to view the data table. - X Table of numbers of girls and probabilities The mean is μ = 4.0 girl(s). (Round to one decimal place as needed.) D Number of Girls x P(x) 0.002 The standard deviation is a 0 1 0.031 2 0.109 0.221 0.259 0.229 0.118 0.026 0.005 girl(s). (Round to one decimal place as needed.) 7

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