Does prison really deter violent crime? Let x represent percent change in the rate of violent crime and y represent percent change in the rate of imprisonment in the general U.S. population. For 7 recent years, the following data have been obtained. x 6.5 6.5 5.2 6.2 5.4 3.9 1.6 -4.4 -6.6 -4.0 3.6 -0.1 -4.4 y LAUSE SALT Complete parts (a) through (e), given Ex=44.8, y=-17.5, x2 = 317.56, y2 = 113.81, Exy=-107.87, and r-0.0889. (a) Draw a scatter diagram displaying the data. # x(percent change in the rate of violent crime) xpercent change in the rate of violent crime x(percent change in the rate of violent crime xpercent change in the rate of violent crime) (b) Verify the given sums x, y, x, y2, xy, and the value of the sample correlation coefficient r. (Round your value for r to four decimal places.) Ex= Ey= Sy= (c) Find x, and y. Then find the equation of the least-squares line;= a + bx. (Round your answer to four decimal places.) x= y= 9TH ܐܨܕ
Does prison really deter violent crime? Let x represent percent change in the rate of violent crime and y represent percent change in the rate of imprisonment in the general U.S. population. For 7 recent years, the following data have been obtained. x 6.5 6.5 5.2 6.2 5.4 3.9 1.6 -4.4 -6.6 -4.0 3.6 -0.1 -4.4 y LAUSE SALT Complete parts (a) through (e), given Ex=44.8, y=-17.5, x2 = 317.56, y2 = 113.81, Exy=-107.87, and r-0.0889. (a) Draw a scatter diagram displaying the data. # x(percent change in the rate of violent crime) xpercent change in the rate of violent crime x(percent change in the rate of violent crime xpercent change in the rate of violent crime) (b) Verify the given sums x, y, x, y2, xy, and the value of the sample correlation coefficient r. (Round your value for r to four decimal places.) Ex= Ey= Sy= (c) Find x, and y. Then find the equation of the least-squares line;= a + bx. (Round your answer to four decimal places.) x= y= 9TH ܐܨܕ
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter3: Straight Lines And Linear Functions
Section3.CR: Chapter Review Exercises
Problem 15CR: Life Expectancy The following table shows the average life expectancy, in years, of a child born in...
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