A golf ball is dropped from 15 different heights (in cm)and the height of the bounce is recorded (in cm. )The regression analysis gives the model
= -0.3 + 0.69 drop.Explain what the slope of the line says about the bounce height and the drop height of the ball.
A)On average,the bounce height will be 0.69 cm less than the drop height.
B)On average,the drop height increases by 0.69 cm for every extra cm of bounce height.
C)On average,the bounce height increases by -0.3 cm for every extra cm of drop height.
D)On average,the bounce height increases by 0.69 cm for every extra cm of drop height.
E)On average,the drop height increases by -0.3 cm for every extra cm of bounce height.

Question

A golf ball is dropped from 15 different heights (in cm)and the height of the bounce is recorded (in cm. )The regression analysis gives the model 
= -0.3 + 0.69 drop.Explain what the slope of the line says about the bounce height and the drop height of the ball.
A)On average,the bounce height will be 0.69 cm less than the drop height. 
B)On average,the drop height increases by 0.69 cm for every extra cm of bounce height. 
C)On average,the bounce height increases by -0.3 cm for every extra cm of drop height. 
D)On average,the bounce height increases by 0.69 cm for every extra cm of drop height. 
E)On average,the drop height increases by -0.3 cm for every extra cm of bounce height.

Quizplus · Accepted Answer

The slope of the line (0.69) represents the change in bounce height (dependent variable) for every extra cm of drop height (independent variable), on average. Therefore, option D is the correct choice.

A Golf Ball Is Dropped from 15 Different Heights (In