AnswersCR_AQR_Advanced Quantitative Reasoning A_2111_SAISD 25-26Calculating the Least-Squares Regression LineQuestion 9
9
QuizMultiple Choice
Calculating the Least-Squares Regression Line
Question 9 • CR_(AQR)_Advanced Quantitative Reasoning A_2111_SAISD 25-26
An economist studies the relationship between the unemployment rate of adult males and male life expectancy for 12 European countries. The relationship is shown in the scatterplot. The value of r for the scatterplot is –0.423.
Answer
A
Unemployment is a cause of lower life expectancy.B
Countries with higher unemployment rates also have higher life expectancy.C
Lower unemployment rates may have an association with unhealthy lifestyles, which is also associated with lower life expectancy.D
Higher unemployment rates may have an association with unhealthy lifestyles, which is also associated with lower life expectancy.