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Briefly explain correlation and Sketch a rough scatterplot for which it would be inappropriate to use...

Briefly explain correlation and Sketch a rough scatterplot for which it would be inappropriate to use correlation to describe the association.

Math   Statistics-And-Probability   
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Answer #1

Correlation is used to explain the relationship between independent variable and dependent variable. It tells us how much dependent variable is related to the independent variable.

The sign of correlation coefficient depends upon the sign of slope, i.e. the slope is very much helpful in predicting the sign and strength of the correlation between dependent and indenpendent variable.

This is the scatter plot for which it is inappropriate to use the correlation to describe the association because the slope of scatter plot is neither positive nor negative.

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