| An Example |
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| q | Suppose that the correlation coefficient between sunspots |
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| and five-year mean global temperature is 0.5 ( r = 0.5 ). |
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| q | The fraction of the variance of 5-year mean global |
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| temperature that is “explained” by sunspots is r2
= 0.25. |
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| q | The fraction of unexplained variance is 0.75. |
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