This resource explains the different measures of center, variability, etc. that are used to describe the spread of statistical data. Includes examples and practice exercises.

The resource from Khan Academy provides practice questions for the Praxis Core Math Test. This section reviews probability and statistics questions connected to the center and spread of data in a collection.

This is a comprehensive online text about statistics which covers all the basic concepts.

Explore how to interpret a large set of data by dividing it up into smaller portions in order to answer statistical questions.

This lesson looks at how to recognize patterns in a data display by examining the shape of a graph, the center, the spread, and unusual features such as outliers. Includes video. [11:16]

When we collect data it's important to know what type of data we're collecting and how to collect it properly.

Provides an introduction to probability. Includes examples, two videos, and links to additional resources, e.g., exercises to try. There are also problems and discussions of them in the Comments section.

Several paragraphs of explanation and graphs are found here to get across the concept of normal scores, z-scores, and the related probability in a simple fashion. This page is part of a collection from the university on basic statistical...

This site features an online textbook with very in-depth information about multivariable statistics. (NOTE: In the archived version, some images do not appear. However, many of them are multiple-choice questions for students, and if you...

This site defines probability and has a computer-based random number generator. The site has links to more than 100 probability problems which require some prior statistical knowledge to solve, or they can be great "openers" for teachers...

This lesson focuses on the probability and casino games such as Roulette which consists of a wheel with the numbers from 1 to 36 colored in red and black, as well as a green 0. A ball rolls around the outside and randomly lands on one of...

Gain an understanding of combinations and permutations by viewing an example and a video lesson. [1:15]

Use this Common Core Math Standards Browser to search specific math concepts and their corresponding standards. This page focuses on Using Probability to Make Decisions. Click on the links to find lessons, activities, videos, and study...

In the 2008 Beijing Olympics the UK finished 4th in the total medal count. How might we do in 2012, and does the country hosting the Olympics have an edge?

A stem and leaf plot is a graphical representation for investigating variation. You will convert an ordered stem and leaf display grouped by tens into an ordered display grouped by fives.

You're playing Monopoly with a friend, and you've already got Park Place and you really, really want to get Boardwalk. If you're on Pacific Avenue, what are the chances you'll reach your goal? Here's an easy project that will show you...

The different types of distributions are discussed here - uniform, regular, negative exponential, triangular, and normal. The properties of probability distributions are also explained here in detail. A good starting point in the topic...

Use the multiplication rule to solve some dependent probability problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This project shows how mathematical probability sometimes contradicts our intuition. Despite the fact that there are 365 days in a year, if you survey a random group of just 23 people there is a 50:50 chance that two of them will have...

A comprehensive guide for learning all about frequency distribution tables with definitions, how to create a frequency distribution table, and the formulas and graphs related to frequency distributions. With solved examples and...

As the pollster for candidate Higgins, you need to know how she is faring with different groups. Read her political profile, view the demographic profile of the city, decide on the groups to poll, review the results and learn about...

The students will survey their classmates and construct circle graphs to display their results. Students will produce circle graphs using a compass and protractor, and then with an interactive computer program.This lesson plan was...

This interesting article explains gambling (both horse racing and casinos) in terms of probability. It takes a common sense approach, instead of a mathematical approach, to the topic.

This site contains biographical information and works of the mathematician Abraham DeMoivre.