Algebra 1 | Unit 3 | Lesson 8: Using the Correlation Coefficient | Practice Problems

The number of minutes on the phone and the customer satisfaction rating have a weak negative relationship. Explain what it means to have a weak negative relationship in this context.

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CCSS.HSF.LE.B.5

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CCSS.HSF-LE.A.1B

• 0.01

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• -0.99

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Which of the following is the best estimate of the correlation coefficient for the data shown in the scatter plot? Description: Graph of a scatter plot, xy-plane, origin O. Horizontal axis scale 0 to 50, by 10’s. Vertical axis scale 0 to 100, by 20’s. Best fit line from approximately (8 comma 78) to near (45 comma 45). The data is slightly scattered and trends downward with a negative slope.

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CCSS.8.F.B.4

CCSS.HSF.LE.A.2