| APPLET | SOURCE | DESCRIPTION |
|
| 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 |
| Mean and Median | W.H. Freeman & Co. | Enter or move points on a dot plot to display mean and median. more |
| 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 |
| Mean versus Median | Prentice-Hall applets (West) | Users observe the effect of outliers on mean and median and attempt to create distributions with specified means and medians. more |
| Measures of Central Tendency: Mean, Median, and Mode | SABLE (Statistics Activity Based Learning Environment), Virginia Tech | Interactive tutorial to introduce measures of central tendency, activities include calculating mean and median for a small data set, finding mean and median on a histogram, answering questions regarding when each measure is useful, creating symmetric and skewed distributions by changing histograms, and observing measures on several histograms of real data. more |
| Measures of Dispersion: Departures from Central Tendency | SABLE (Statistics Activity Based Learning Environment), Virginia Tech | Interactive tutorial to introduce variation, activities include indentifying range and percentiles from histograms, walking through standard deviation calculations, comparing histograms and descriptive for several distributions, and using interactive histograms to conceptualize z-scores. more |
| Standard Deviation | Prentice-Hall applets (West) | Users attempt to create distributions with specified standard deviations. more |
| Standard Deviation | Schneiter | Choose number of bins, height of bars, click to create and adjust histogram and observe effect on mean and standard deviation that are displayed visually, includes activity to guide student exploration. more |