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Chapter 2

Chapter 2. Section 5. Correlation and Best-Fitting Lines. Objective:. To be able to determine correlation and fit a line to the plotted data. Correlation. Positive Correlation can be determined if Y tends to increase as X increases. Correlation.

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Chapter 2

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  1. Chapter 2 Section 5 Correlation and Best-Fitting Lines Joe Zona

  2. Objective: • To be able to determine correlation and fit a line to the plotted data

  3. Correlation • Positive Correlation can be determined if Y tends to increase as X increases

  4. Correlation • Negative Correlation can be determined if Y tends to decrease as X increases

  5. Correlation • No Correlation can be determined if the points show no linear pattern

  6. Best Fitting Line • First Sketch a line that appears to bisect the correlation

  7. Best Fitting Line • Then choose two points on the line

  8. Best Fitting Line • Find and equation of the line that passes through both the points 3 2

  9. Summary • If the points go up, it is positive correlation, if the points go down, it is negative correlation, if there is not specific pattern, it has no correlation. • When finding the best fitting line, draw a line bisecting the correlation and make a equation for the line.

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