Linear Residuals

Shown is a residual plot. How many negative residuals are there?

• 5

• 1

• 3

• 9

A negative residual means...

• that the predicted value is too big

• that the predicted value is too small

• that the x value is too big

• that the x value is too small

Shown is a residual plot. How many zero residuals are there?

• 5

• 1

• 3

• 0

• This residual plot indicates a good model.

• This residual plot indicates a poor model.

A positive residual means...

• that the predicted value is too big

• that the predicted value is too small

• that the x value is too big

• that the x value is too small

A residual is the vertical distance between a data point and a line of fit.

• True

• False

I predicted someone would score a 78% on their test, but they actually scored an 81%. What's the residual?

• 81 - 78 = 3

• 78 - 81 = -3

• What's residual?

Use Desmos to generate the linear regression model for this data set. What is the residual for the point (31, 560)? (round to nearest hundredth)

• 2.48

• -15.79

• -7.52

• 12.87