If the coefficient of determination is calculated as 0.48 and regression equation y = 2.4 – 3.5x, then the correlation coefficient is - 0.2304 0.6928 0.2304 O -0.6928

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter3: Straight Lines And Linear Functions
Section3.4: Linear Regression
Problem 12SBE: Find the equation of the regression line for the following data set. x 1 2 3 y 0 3 4
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From regression summary statistics, the correlation coefficient is 0.25.
From this value, which of the following is TRUE? *
The slope of the regression model must be positive.
The slope of the regression model can be positive or negative.
75% of the variation in one variable is explained by the other variable.
25% of the variation in one variable is explained by the other variable.
Transcribed Image Text:From regression summary statistics, the correlation coefficient is 0.25. From this value, which of the following is TRUE? * The slope of the regression model must be positive. The slope of the regression model can be positive or negative. 75% of the variation in one variable is explained by the other variable. 25% of the variation in one variable is explained by the other variable.
If the coefficient of determination is calculated as 0.48 and regression equation y = 2.4 – 3.5x,
then the correlation coefficient is
- 0.2304
0.6928
0.2304
-0.6928
Transcribed Image Text:If the coefficient of determination is calculated as 0.48 and regression equation y = 2.4 – 3.5x, then the correlation coefficient is - 0.2304 0.6928 0.2304 -0.6928
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