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 site, created by Michelle Lacey of Yale University, gives a definition and an example of normal distributions. Topics include assessing normality and normal probability plots. The author thoughtfully combines her...
This site, created by Michelle Lacey of Yale University, gives a definition and an example of numerical summaries. Topics include: mean, median, quantiles, variance, and standard deviation. While brief, the site is...
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