Year 7 - Q16.5.06
20912
A bar chart uses a vertical axis beginning at 35. Shops A, B and C have sales of 40, 50 and 60 items. The visible bar for C is five times as tall as the visible bar for A. A pupil says C sold five times as many items as A. Explain the error and find the actual factor.
Hint
Compare the actual values, not only the visible heights above 35.