This website, created by Craig A. Wendorf of the University of Wisconsin - Stevens Point, describes dummy coding for categorical variables. It is broken down into these categories: an overview of dummy variables, how to...
This one page article, created by Statistics Canada, describes the meaning behind random sampling error. It points our the relationship of the random sampling error with the sample size, population size, variability of...
This site, created by Michelle Lacey of Yale University, give a definition and an example of boxplots. Topics include outliers, medians, as well as lower and upper quartiles. The author addresses the possible uses of...
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