Getting Familiar with Common Statistics

By Deborah J. Rumsey, David Unger

Part of U Can: Statistics For Dummies Cheat Sheet

After data has been collected, the first step in analyzing it is to crunch some descriptive statistics to get an initial feeling for the data. For example:

  • Where is the center of the data located?

  • How spread out are the data?

  • How correlated are the data from two variables?

The most common descriptive statistics are in the following table, along with their formulas and a short description of what each one measures.

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