The Data Handling Cycle

• Graphs can be misleading as:

  1. you can have an uneven scale eg going up by 2 then 5 then 10
  2. The pictures in a pictogram are different/not the same size
  3. The graphs width could be different
• To work out a section of a pie chart with an angle :

  If the angle of the section is 54 and the amount of responses is 160 you do

  54÷360×160= 24
• A pie chart is used for comparison
• To draw a pie chart you need to make the numbers into degrees so say the total of all the numbers is 36 you would times each number by 10. You would draw a line then one angle and repeat