Presents a problem that is similar to what might be on an AP Statistics exam. Walks students through each step for solving it and students input answers to questions along the way.

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.

Compute the expected value given a set of outcomes, probabilities, and payoffs. Students receive immediate feedback and have the opportunity to try questions repeatedly or receive hints.

See how Z-scores are related to the Empirical Rule from the standpoint of being a method of evaluating how extreme a particular value is in a given set.

MathWorld offers a plethora of information on variance. Student should have some statistic knowledge to use this site. This site contains links to related topics.

The mathematics tutorial investigates statistical studies, central tendency, and dispersion. The lesson consists of class notes, calculator tips, examples, and practice problems with solutions. The teacher resource includes an activity...

Explore the bell-shaped curve and how to calculate a z score. Additional links provided to further knowledge on outliers.

Practice applying the 68-95-99.7 empirical rule. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

[Free Registration/Login may be required to access all resource tools.] Use percentages associated with normal distributions to solve problems.

This task looks at a possible relationship between how many text messages high school students send and their grade point average. The data is presented in a scatter plot which students must examine for patterns and deviations. Aligns...

Below are the heights of the players on the University of Maryland women's basketball team for the 2012-2013 season and the heights of the players on the women's field hockey team for the 2012 season. (Accessed at...