| APPLET | SOURCE | DESCRIPTION |
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| Dot Plot Summaries | Rossman Chance Applet Collection | Generate random data sets of different shapes or with outliers and guess mean, median, deviation, IQR, then check your answers. Includes questions to guide inquiry. more |
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| One Variable Statistical Calculator | W.H. Freeman & Co. | Calculate descriptive statistics and generate histograms and stemplots for several example datasets, of special interest are two datasets with the same mean and standard deviation but very different distributions. more |
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| Mean and Median | Rice Virtual Lab in Statistics (Lane) | User observes mean, median, standard deviation and skew of a dataset as they manipulate a histogram, also has discussion of central tendency, skew, center of gravity, prediction as well as exercises. more |
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| Mean Influence | Seeing Statistics (McClelland) | Shows the effects of a single point on the mean. more |
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| Median Influence | Seeing Statistics (McClelland) | Shows the effects of a single point on the median. more |
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| Comparing Properties of the Mean and the Median through the use of Technology | National Council of Teachers of Mathematics (NCTM) | Shows mean and median as users move data points around a number line, includes several questions for guided exploration. more |
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| Mean and Median | W.H. Freeman & Co. | Enter or move points on a dot plot to display mean and median. more |
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| Mean and Median | Schneiter | Choose number of bins, height of bars, click to create and adjust histogram and observe effect on mean and median that are displayed, includes two activities to guide student exploration. more |
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