Hello, i have asked my question below if anyone would be kind enough to help me out :)

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You use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data set is -0.833. Can you be confident that your predicted value will be reasonably close to the actual value? Why or why not? ​
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1 answer

yes
If the coefficient is c, then if |c| is close to 1 the line is a good predictor.

google correlation coefficient and read about it.