成人快手

Presenting data - graphs, charts and diagramsBar graphs

Statistical information can be presented in diagrams, graphs and charts. The type you use will largely depend on the sort of data that you want to present.

Part of MathsData analysis

Bar graphs

Bar graph. Y axis 0, 5, 10, 15. X axis Orange, Blue, Red

From the bar graph above, the main points are:

  • Each bar has its own label on the horizontal axis
  • There is a scale on the vertical axis
  • The bars are of equal width

Example questions

Below is a graph showing the takings in a canteen during part of the school year.

Bar graph of takings in a canteen during part of the school year.

Question

How much money was taken during January?

Question

Which two months had the same takings?

Question

Why do you think the takings were lowest in April?

Question

What were the total takings for the period?