Charts are visual ways to show information.
This exercise focuses on how charts can distort information.
Sometimes charts do not accurately display facts due to a simple error. For example, the labels on two bars get switched by mistake, and show the opposite of what the facts show.
In other cases, the person who creates the chart wants to make small differences seem much bigger than they really are. This happens when:
1. the vertical Y axis does not start from 0.
2. the horizontal Y axis has very small divisions.
These two distortions can make the differences between the bars seem much bigger than they really are.
People who worked at an American television station conducted a survey to see which political party they supported. Results showed that 62% of people in this survey supported the Democrats, and 54% supported the Republicans.
Preview release – please send us your comments
All rights reserved Copyright © The Open University of Israel