Begin by reviewing mean absolute deviation as a measure of variability. Your new learning will begin with standard deviation and understanding the difference between mean absolute deviation and standard deviation.

Students learn how to calculate the standard deviation by hand. Detailed examples that explore how to use the standard deviation formula are included.

An interesting real-world use of statistical variance and standard deviation to help dispell the common perception that all major league baseball players are paid millions of dollars and are not worth it. The lesson plan gives specific...

Site contains information on the statistical term standard deviation. It gives a definition and shows how to calculate it. It has a link to information on the absolute value of a deviation and how the topics are related.

Practice calculating the mean absolute deviation.

This is an excellent resource on what the science of statistics involves. There are all kinds of definitions, examples, graphs, and charts to learn from. The topics covered include: mode, mean, median, skewed distributions and measures...

Explanation and examples of variance and standard deviation. Helpful charts and formulas are provided.

Calculate basic summary statistics for a sample or population data set including minimum, maximum, range, sum, count, mean, median, mode, standard deviation and variance.

A tutorial to understand the three central tendencies and how to find them, as well as the standard deviation of values. Offers a discussion and practice problems.

Find expected value based on calculated probabilities. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

A series of explanations of statistics terms based on the statistics from a dice game.