Question

the scatter plot and line of best fit below show the length of 12 peoples femur (the long leg bone in the thigh) and their height in centimeters. what is the meaning of the y - value on the line when x = 40? answer: the height of an actual person with a femur length of 158.4 centimeters is 40 centimeters. an expected height of 158.4 centimeters when the femur has a length of 40 centimeters. the height of an actual person with a femur length of 40 centimeters is 158.4 centimeters. an expected height of 40 centimeters when the femur has a length of 158.4 centimeters.

Explanation:

The line of best - fit represents a trend in the data. In this context, $x$ represents the femur length and $y$ represents the height. When $x = 40$ (femur length is 40 centimeters), the $y$ - value on the line gives the expected height based on the relationship modeled by the line of best - fit.

Answer:

An expected height of 158.4 centimeters when the femur has a length of 40 centimeters.