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The extra point The scatterplot shows five blue data

Chapter 8, Problem 27E

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QUESTION:

Problem 27E

The extra point The scatterplot shows five blue data points at the left. Not surprisingly, the correlation for these points is r = 0. Suppose one additional data point is added at one of the five positions suggested below in green. Match each point (a–e) with the correct new correlation from the list given.

1) -0.90

2) -0.40

3) 0.00

4) 0.05

5) 0.75

Questions & Answers

QUESTION:

Problem 27E

The extra point The scatterplot shows five blue data points at the left. Not surprisingly, the correlation for these points is r = 0. Suppose one additional data point is added at one of the five positions suggested below in green. Match each point (a–e) with the correct new correlation from the list given.

1) -0.90

2) -0.40

3) 0.00

4) 0.05

5) 0.75

ANSWER:

Step 1 of 5

a) The estimated line through the data will be strongly increasing and thus the correlation coefficient should be about

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