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Find the mean of the random variable

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Reference no: EM132856740

Let the random variable x represent the number of girls in a family with three children. Assume the probability of a child being a girl is 0.47.

The table on the right describes the probability of having x number of girls. Determine whether the table describes a probability distribution. If it? does, find the mean and standard deviation. Is it unusual for a family of three children to consist of three? girls?
x?P(x) THIS IS THE TABLE BELOW

0 0.149

1 0.396

2 0.351

3 0.104

Find the mean of the random variable.

Reference no: EM132856740

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