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5 January, 17:05

You use a line best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data set is - 0.015. How confident can you be that your predicted value will be reasonably close to the actual value?

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  1. 5 January, 20:37
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    The correlation can range from - 1 to 1, with 0 being no correlation at all. so in this case, -.015 is very close to 0, you would be not confident at all. This means your prediction is no better than a random guess.
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