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.   A. The mean is mu equals    ​girl(s). (Round to one decimal place as​ needed.) B. The standard deviation is sigma equals     ​girl(s). ​ (Round to one decimal place as​ needed.)

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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.

 

A. The mean is mu equals    ​girl(s).

(Round to one decimal place as​ needed.)

B. The standard deviation is sigma equals     ​girl(s). ​
(Round to one decimal place as​ needed.)

 

Number of
Girls x
0
1
2345678
P(x)
0.006
0.033
0.118
0.224
0.241
0.222
0.118
0.033
0.005
Transcribed Image Text:Number of Girls x 0 1 2345678 P(x) 0.006 0.033 0.118 0.224 0.241 0.222 0.118 0.033 0.005
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