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Question

Course Contents » » Tues : Required: Assignment 9: Chapters 7-9 » Match scatterplots ) Timer Evaluate FeedbackPrint Info RMSE- The SD of the prediction errors (also known as the RMSE) is a measure of the spread around the Regression Line. Look at the 4 scatter plots below. All 4 plots have 7 points with the same 4 summary statistics: The average of the X's-4 with SD-2, and the average of the Y's-4 with SD-2. What's different about each plot is its the correlation coefficient, r. Each r is given just below the plot. Match the plots with the SD's of the errors (the RMSE's) r=0.89

Explanation / Answer

The greater the r value, the smaller the RMSE.

Hence,

RMSE = 1.8 [D]
RMSE = 0.9 [A]
RMSE = 2 [C]
RMSE = 0 [B]

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