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Statistics LibreTexts

16: Transformations

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In this chapter, we focus on the fact that many statistical procedures work best if individual variables have certain properties. The measurement scale of a variable should be part of the data preparation effort. For example, the correlation coefficient does not require that the variables have a normal shape, but often relationships can be made clearer by re-expressing the variables.


  • Online Statistics Education: A Multimedia Course of Study ( Project Leader: David M. Lane, Rice University.