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Philip
Philip
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I'm in an AP statistics class, and several weeks ago we discussed regression lines. I understand that a regression line is the best fit for the the given data and that it can be used to predict variables. A least squares regression line can be used to determine the smallest possible value for squared residuals. Why is a Why is this important information? What does it tell us about the data?line informative even when the data doesn't fall along the line?

I'm in an AP statistics class, and several weeks ago we discussed regression lines. I understand that a regression line is the best fit for the the given data and that it can be used to predict variables. A least squares regression line can be used to determine the smallest possible value for squared residuals. Why is this important information? What does it tell us about the data?

I'm in an AP statistics class, and several weeks ago we discussed regression lines. I understand that a regression line is the best fit for the the given data and that it can be used to predict variables. A least squares regression line can be used to determine the smallest possible value for squared residuals. Why is a line informative even when the data doesn't fall along the line?

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Philip
Philip
  • 141
  • 5

Least Squares Regression Line

I'm in an AP statistics class, and several weeks ago we discussed regression lines. I understand that a regression line is the best fit for the the given data and that it can be used to predict variables. A least squares regression line can be used to determine the smallest possible value for squared residuals. Why is this important information? What does it tell us about the data?