For a sample of 41 New England cities a sociologist
For a sample of 41 New England cities, a sociologist studies the crime rate in each city (crimes per 100,000 residents) as a function of its poverty rate (in %) and its median income (in $1,000s). A portion of the regression results is shown in the following table.

a. Calculate the standard error of the estimate.
b. What proportion of the variability in crime rate is explained by the variability in the explanatory variables? What proportion isunexplained?
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