Part 9
Correlation between Race and Crime Rate (US States)
Blacks and Mestizos Taken Together
The data to form this graph was taken from Tables #310, #37, #38 and #36 in The American Almanac 1995-1996. Blacks and Hispanics (who are mostly mestizos) were taken together as one group to form that graph. The correlation coefficient for the data graphed there (representing the 50 states plus the District of Columbia) is 0.85. A least-squares linear fit to the data results in the equation
where X is the percentage of the population that is either Black or Hispanic and Y is the rate of violent crimes (per 100,000 population per year).