A researcher wants to determine if a person's height affects whether the person is an avid reader. The plot below shows the relationship between height, in inches, and the number of books read in the past year. The linear regression output is given below. Number of books read in past year 125 25 100 75 75 50 25 .. 50 . 55 60 65 70 75 Regression Statistics Multiple R 0.445282 R Square 0.198276 Adjusted R Square 0.169643 Standard Error 20.19147 Observations 30 R Pick most some Height (in inches) Height very little much of the variance in number of books read? Pick variance A researcher wants to determine if a person's height affects whether the person is an avid reader. The plot below shows the relationship between height, in inches, and the number of books read in the past year. The linear regression output is given below. 125 00 100 75 Number of books read in past year 50 50 25 0 50 55 60 65 70 75 Regression Statistics Multiple R 0.445282 R Square 0.198276 Adjusted R Square 0.169643 Standard Error 20.19147 Observations 30 R = Ex: 0.654321 Height (in inches) Height explains how much of the variance in number of books read? Pick variance