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Correlation coefficient and descriptive statistics

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Give a brief definition and an example of the following:

a. Descriptive Statistics
b. Inferential Statistics

What does the correlation coefficient r describe? What about r squared?

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Solution Summary

This solution helps go through statistical concepts such as correlation coefficients and descriptive statistics.

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(1) (a) Descriptive statistics are used to organize or summarize a data set. That is, descriptive statistics "describe" the data that has been collected. For example, the arithmetic average (mean) may be used as a "descriptive measure" for the number of workers who kept away from work during the 5-day strike. The census of any country is another example of descriptive statistics. In this case, the information that is gathered concerning gender, race, income, etc. is compiled to ...

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