10 Common Mistakes Found on Graphs

  1. No title on graph
  2. Source of data not given
  3. Pictograph – no key
  4. Scales are interrupted
  5. Scales are not labelled
  6. Symbols in pictographs not same size or equally spaced on graph
  7. Use of 2 or 3 dimensional objects to compare data (area/volume)
  8. Scales do not start at zero
  9. Numbers on axis (vertical or horizontal) not equally spaced
  10. Scale is selected to produce desired result