Question

the scatter plot and line of best fit below show the length of 5 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 = 45? answer an expected height of 157.3 centimeters when the femur has a length of 45 centimeters. the height of an actual person with a femur length of 157.3 centimeters is 45 centimeters. an expected height of 45 centimeters when the femur has a length of 157.3 centimeters. the height of an actual person with a femur length of 45 centimeters is 157.3 centimeters.

Explanation:

In a scatter - plot with a line of best fit, the line represents a predicted or expected relationship. When \(x = 45\) (where \(x\) is the femur length), the \(y\) - value on the line of best fit gives the expected value (not the actual value of a specific person). The \(y\) - value represents height (since the \(y\) - axis is labeled as height in centimeters).

Answer:

An expected height of 157.3 centimeters when the femur has a length of 45 centimeters.