This site from MathWorld provides a general overview of frequency distribution, complete with a bar graph and explanatory text.

[Free Registration/Login may be required to access all resource tools.] Make a histogram given a frequency table.

[Free Registration/Login Required] Students draw conclusions and engage in tables and charts involving cumulative frequency; a wonderful review of student's knowledge.

A sample problem is provided to help you create a histogram using a frequency distribution chart. Sample charts and formulas are provided to help explain how to find the area of the rectangles in the histogram and how to interpret what...

Richland Community College provides a glossary of many terms that are needed in order to understand statistics graphs and charts. Each of the types of charts is quickly explained in terms of what it is most effective in displaying.