Question: Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. Then calculate it again, letting Row 2 represent the
Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. Then calculate it again, letting Row 2 represent the x-values and Row 1 the y-values. What effect does switching the variables have on r?
Row 1 | 20 | 26 | 39 | 40 | 56 | 63 | 72 | |
|---|---|---|---|---|---|---|---|---|
Row 2 | 195 | 157 | 167 | 178 | 145 | 168 | 192 |
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Part 1
Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values.
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(Round to three decimal places as needed.)
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