A building manager is trying to determine itthe monthly heating cost otthe building is mainly inuenced by the outside temperature. The plot below shows the relationship between the number of heating degree days in a month and the monthly heating costs of the building. The linear regression output is given below. 400 '9' . , Regression Statistics 'U 300 . . r.' g ' .3 ' Multiple R 0.996382 m ., . 0 R Square 0.992777 0 g . - Adjusted R Square 0.992519 :3 mo . , Standard Error 8.17228 g . *" Observations 30 5 o o _ 100 200 300 400 560 000 Number of heating degree days in 9 month R2 = Ex: 0.654321 The number of heating degree days explains how much of the variance in monthly heating cost? Pick v variance