Problem

(Modeling) Household Size The table lists the average number of people age...

(Modeling) Household Size The table lists the average number of people age 18 or older in a U.S. household.

(a) Use regression to find a quadratic function that models the data. Let x represent the year.

(b) Estimate the average number of people age 18 or older in a household during 1975. Compare your estimate to the actual value of 2.01.

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Solutions For Problems in Chapter 3

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