Compute the variance and standard deviation of the number

Reference no: EM13626095

The U.S. Census Bureau (Annual Social & Economic Supplement) collects demographics concerning the number of people in families per household. Assume the distribution of the number of people per household is shown in the following table:

x	P(x)
2	0.27
3	0.25
4	0.28
5	0.13
6	0.04
7	0.03

a. Compute the variance and standard deviation of the number of people in families per household.

b. Calculate the expected number of people in families per household in the United States.

Reference no: EM13626095

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