Question: Extrapolating murder The SPSS figure shows the data and regression line for the 50 states in Table 3.6 relating x = percentage of single-parent families

Extrapolating murder The SPSS figure shows the data and regression line for the 50 states in Table 3.6 relating x = percentage of single-parent families to y = annual murder rate (number of murders per 100,000 people in the population).

a. The lowest x value was for Utah and the highest was for Mississippi. Using the figure, approximate those x values.

b. Using the regression equation stated above the figure, find the predicted murder rate at x = 0. Why is it not sensible to make a prediction at x = 0 based on these data?

Murder Rate 100.00 Fitted Line Plot Murder -8.25 +0.56 Single Parent 80.00

Murder Rate 100.00 Fitted Line Plot Murder -8.25 +0.56 Single Parent 80.00 60.00 40.00 20.00 0.00 R sq Linear = 0.459 10.00 15.00 20.00 25.00 Single Parent 30.00

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