Each of the following graphs show the relationship between two variables. Determine the Pearson product-moment correlation coefficient (r) for each graph. 12 25- 10- n20- 8- 6- 15- 4 10- 2- 5- 0 0 20 0 10 20 Variable Variable Answer Bank r0.0 r0.8 r0.4 r 0.99 30- r0,9 oo 0.8- 20- 0.6- 0.4- 10- 0.2 0 5 10 0 15 0.2 0.4 0.6 0.8 10 Variable Variable Variable 3 Variable 6 Variable 8 Variable 5 30- 30 25- 25- 20- 20- 15- 15- 10- 10- 5- 5 10 15 5 10 15 Variable Variable 8- 2- 0 5 10 15 20 25 Variable Variable 2 Variable 7 Variable 4
Each of the following graphs show the relationship between two variables. Determine the Pearson product-moment correlation coefficient (r) for each graph.
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