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. The mean is µ = 4 girl(s). (Round to one decimal place as needed.) The standard deviation is o=1.4 girl(s). (Round to one decimal place as needed.) Table of numbers of girls and probabilities Number of Girls x 0 U ! 4 5 8 P(x) 0.004 0.027 0.115 0.228 0265 0.217 0.112 0.027 0.005

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