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What effect did potential outlier have on line of best fit

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Reference no: EM131667967

Qusetion: The scatter plot shows the relationship between hours spent studying and exam scores. The line shown is the calculated line of best fit. The correlation coefficient is 0.69.

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1. Do there appear to be any outliers?

2. A point is removed, and the line of best fit is recalculated. The new correlation coefficient is 0.98. Does the point appear to have been an outlier? Why?

3. What effect did the potential outlier have on the line of best fit?

Reference no: EM131667967

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