Question

PLEASE HELP!!

The residuals for data set A and data set B were calculated and plotted on separate residual plots. If the residuals for data set A do not form a pattern, and the residuals for data set B form a pattern, what can be concluded?

A. Data set A is linear, and data set B is not linear.

B. Data set A is not linear, and data set B is not linear.

C. Data set A is linear, and data set B is linear.

D. Data set A is not linear, and data set B is linear.

Answer 1

Answer: A

Explanation:

When the residuals are random, it implies that the linear fit is appropriate for the data set. When residuals form a pattern, it indicates that the linear fit for the data set is not appropriate since there is a systematic error instead of random error.