Question: Table 11.11 in Exercise 11.83 gives the probability function for the random variable giving the household size for an owner-occupied housing unit in the US.

Table 11.11 in Exercise 11.83 gives the probability function for the random variable giving the household size for an owner-occupied housing unit in the US.

Table 11.11

3 2 4 p(x) 0.217 0.363 0.165 0.145 0.067 0.026 0.018

(a) Find the mean household size.
(b) Find the standard deviation for household size.

3 2 4 p(x) 0.217 0.363 0.165 0.145 0.067 0.026 0.018

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