Presents the steps to follow in designing a study in statistics and explains what makes a good statistical question.

Math glossary and terms on probability and statistics for kids. Learn the definitions used in this mathematics subject such as mean, median, and mode on this site.

The concept of modeling sequences of random events using states and transitions between states became to known as Markov Chains. Introduction to Markov chains. Created by Brit Cruise.

This is a complete, full-year Algebra 1 course with interactivity included in every lesson. Some lessons include videos, and all include interactives and inline questions that offer instant, per-answer feedback. Every lesson also has...

Determine if two events are dependent or independent. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Bar graphs are a nice way to visualize categorical data. This article reviews how to create and read bar graphs.