They are like bar charts, but show frequency density instead of the frequency. They can be used to determine the distribution of data. Module 4 (M4) - Handling data - Stratified sampling ...

Understanding potential pitfalls—and how to overcome them—can help organizations maximize the value of this technology.

Graph 1 presents data in a way that makes it look like there was an increase of 200% between 1998 and 1999 because the second bar is three times the size of the first bar. The scale on the left is ...