# The FL Crime data file on the text CD contains data for all counties in Florida on y = median annual income (thousands of dollars) for residents of the county and x = percent of residents with at least a high school education. The table shows some summary statistics and results of a regression analysis. a. Find the correlation r.

The FL Crime data file on the text CD contains data for all counties in Florida on y = median annual income (thousands of dollars) for residents of the county and x = percent of residents with at least a high school education. The table shows some summary statistics and results of a regression analysis.

a. Find the correlation r. Interpret

(i) The sign and

(ii) The magnitude.

b. Find the predicted median income for a county that is 1 standard deviation above the mean on x , and use it to explain the concept of regression toward the mean.

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## Statistics The Art And Science Of Learning From Data

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**Authors:** Alan Agresti, Christine A. Franklin

**ISBN:** 9780321755940