Bookmarks People Window Help My Pitt Home Take Test: Homework 11-218 x ourseweb.
ID: 3315490 • Letter: B
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Bookmarks People Window Help My Pitt Home Take Test: Homework 11-218 x ourseweb.pitt.edu/webapps/assessment/take/launch.jsp?course assessment jd-_139134 1&cours; Question Completion Status: the result to two (2) decimal places. QUESTION 8 The Pearson product-moment correlation coefficient measures the: O a. The linear association between two variables b. The nonlinear association between two variables c. The association between two variables d, B & C e. A, B&C; QUESTION 9 True or False: If two variables have a Pearson product-moment correlation of 1, this means that they are causally related (i.e., one variable (X0 causes the other ()- if you change X then Y will change. a. TRUE b. FALSE c. NA O d. NA e. NA QUESTION 10 A study was performed in the 1930s on the stopping distances of cars (ft) in relation to the speed (mph) of the car. The plot of the data are shown below on the left Click Save and Submit to save and submit. Click Save All Answers to save all answers Save All Answers 4Explanation / Answer
Solution:-
8) (a) The pearson product-moment correlation coefficint measures the Linear association betweeen two variables.
9) False,
Correlations equal to 1 or 1 correspond to data points lying exactly on a line ,or to a bivariate distribution entirely supported on a line. But it does mean causation.
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