Spreadsheet: Excel, on-line at Google
Example of data visualization: a 20-minute video
Two versions of Standard Deviation: divided by n-1 and n, respectively. We use the former version by default
Applet for one-variable statistics
Use your calculator or the calculator in Microsoft Windows to compute mean and standard deviation (see a webpage recommended by Ryan Piveteau)
Video clip: Normal Distributions
Applet: Normal Density Curve
Homework: Chapter 5 Exercises No. 5, 14, 21, 33, 45.