In most areas of the country, law enforcement has become a major concern. The number of law enforcement officers employed by the federal government and having the authority to carry firearms and make arrests is shown in the table for selected years. (a) Draw a scatterplot using scales that appropriately fit the data and sketch an estimated line of best fit and (b) decide if the association is positive or negative. (c) Choose two points on or near the estimated line of best fit, and use them to find a function model and predict the number of federal law enforcement officers in 1995 and the projected number for 2011. Answers may vary.
x (1990→0) | y (1000s) |
3 | 68.8 |
6 | 71.5 |
8 | 83.1 |
10 | 88.5 |
M | 93.4 |
Source:U.S. Bureau of Justice, Statistics at www.ojp.usdoj.gov/bjs/fedle.htm
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