Identify the true statements about the correlation coefficient, ?. A correlation coefficient of zero means that no relationship exists between the two variables. If two variables are positively correlated, when one variable increases, the other variable decreases. The value of ? ranges from negative one to positive one. The sign of ? describes the direction of the association between two variables. The correlation coefficient is not affected by outliers. When the data points in a scatter plot fall closely around a straight line that is either increasing or decreasing, the correlation between the two variables is strong.
Identify the true statements about the correlation coefficient, ?. A correlation coefficient of zero means that no relationship exists between the two variables. If two variables are positively correlated, when one variable increases, the other variable decreases. The value of ? ranges from negative one to positive one. The sign of ? describes the direction of the association between two variables. The correlation coefficient is not affected by outliers. When the data points in a scatter plot fall closely around a straight line that is either increasing or decreasing, the correlation between the two variables is strong.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 15PPS
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