SPRING 2017 MATH1680.150 MwF Quiz CH4 Quiz Submit Quiz This Question: 1 pt 7 of
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SPRING 2017 MATH1680.150 MwF Quiz CH4 Quiz Submit Quiz This Question: 1 pt 7 of 14 (0 complete) v This Quiz: 14 pts possible Question Help The linear correlation between violent crime rate and percentage has a is years since 1995. Do you believe that increasing the percentage of the population that has ace of the population that cell phone -0.918 be a lurking variable between percentage of the population with a cell phone crime rate? What might phone and violent crime rate? wl increasing the percentage of the population that has a cel phone decrease the violent crime rate? Choose the best option below. O No O Yes What might be a lurking variable between percentage of the population with a cell phone and violent crime rate? O A overall cell phone signal strength O B. the police O C. the average cell phone's effectiveness as a weapon O D. the economy Click to select your answer.Explanation / Answer
1) Yes increasing the percentage of population with cell phone decreases the violent crime rate
2) D, the Economy is lurking variable
3) Variable Marginal Distribution
y1 115
y2 105
x1 80
x2 40
x3 100
b) Relative frequecies are given below
Variable Relative Frequency
y1 0.261
y2 0.239
x1 0.182
x2 0.091
x3 0.227
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