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Correlation Coefficient

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Determining the strength of a correlation is very important to determine how well one variable can predict another. To determine the strength of a correlation, we have to calculate the correlation coefficient, r.

Explain how people's scores on two variables can be used to calculate r.

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Solution Summary

The expert explains how people's scores on two variables are used to calculate r. A complete, neat and step-by-step solution is provided in the attached file.

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Supposing scores of a group of students in two subjects English (x) and Math (y) are given. Using appropriate formulas, we can determine the correlation coefficient, r between x and y.
Here is an example on how this is done:
Score in ...

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