Which of the following chart type is the easiest for someone to interpret accurately?
- A 3-D chart
- A pie chart
- A color-coded heat map
- A bar chart
You chose: D — Correct!
Research tells us that certain visualizations are easiest for people to interpret accurately. A bar chart relies on length, which is relatively easy for most people to interpret. The other options rely on representations that are more difficult to interpret accurately: Volume (3-D charts), area (pie chart), and color hue (the color-coded heat map).