The table below shows the number of state-registered automatic weapons and the murder rate for sever Northwestern states. 11.8 8.5 7 3.3 2.5 2.8 2.2 0.6 14.2 11.6 10.3 7.1 6.4 6.7 6.2 4.8 x = thousands of automatic weapons y = murders per 100,000 residents This data can be modeled by the linear equation ŷ = 0.84x + 4.33 a. How many murders per 100,000 residents can be expected in a state with 9.1 thousand automatic weapons? Round to 3 decimal places. murders per 100,000 residents b. How many murders per 100,000 residents can be expected in a state with 4.3 thousand automatic weapons? Round to 3 decimal places. murders per 100,000 residents

The table below shows the number of state-registered automatic weapons and the murder rate for sever Northwestern states. 11.8 8.5 7 3.3 2.5 2.8 2.2 0.6 14.2 11.6 10.3 7.1 6.4 6.7 6.2 4.8 x = thousands of automatic weapons y = murders per 100,000 residents This data can be modeled by the linear equation ŷ = 0.84x + 4.33 a. How many murders per 100,000 residents can be expected in a state with 9.1 thousand automatic weapons? Round to 3 decimal places. murders per 100,000 residents b. How many murders per 100,000 residents can be expected in a state with 4.3 thousand automatic weapons? Round to 3 decimal places. murders per 100,000 residents

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Linear Regression Application, Interpolation and Extrapolation Use the data and story to answer the following questions The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. x 11.3 8.5 6.8 3.5 2.4 2.4 2.4 0.3 y 13.8 11.6 9.7 6.9 6.1 6.1 6 4.1 x = thousands of automatic weapons y = murders per 100,000 residents Use your calculator to determine the equation of the regression line. (Round to 2 decimal places) Determine the regression equation in y = ax + b form and write it below. A) How many murders per 100,000 residents can be expected in a state with 8.3 thousand automatic weapons? Answer = Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 5.3 thousand automatic weapons? Answer= Round to 3 decimal places.
2. The table below shows the prevalence of smoking among U.S. adults. a. Make a scatter plot for the data for males and females. b. Write a brief summary to accompany the graph. Smoking Prevalence Among U.S. Adults, 1965–2009 (as a percent of population, 18 years of age and older) Overall Year population Males Females 1965 41.9% 51.2% 33.7% 1974 37.0 42.8 32.2 1983 31.9 34.8 29.4 1985 29.9 32.2 27.9 1990 25.3 28.0 22.9 1992 26.3 28.1 24.6 1994 25.3 27.6 23.1 1995 24.6 26.5 22.7 1997 24.6 27.1 22.2 25.9 25.2 1998 24.0 22.1 1999 23.3 21.6 2000 23.1 25.2 23.4 21.1 2005 2007 20.8 18.3 19.7 22.0 17.5 2009 20.6 23.4 18.3 Source: Statistical Abstracts of the United States, 2012, www.census.gov/ compendia/statab.
The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. xx 11.8 8.4 7.2 3.6 2.7 2.7 2.2 0.7 yy 13.8 11.5 10 7.2 6.4 6.1 6.2 4.4 xx = thousands of automatic weaponsyy = murders per 100,000 residents This data can be modeled by the equation y=0.84x+4.06.y=0.84x+4.06. Use this equation to answer the following;A) How many murders per 100,000 residents can be expected in a state with 2.7 thousand automatic weapons?Answer = Round to 3 decimal places.B) How many murders per 100,000 residents can be expected in a state with 4.9 thousand automatic weapons?Answer = Round to 3 decimal places.
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Scatter plots
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