1. MisleadingGraphs Press Ctrl-A ©2009 – Not to be sold/Free to use Stage 5 Year 9

2. 2 Misleading Graphs 80 000 81 000 82 000 Average House Price Massive Increase In House Prices this Year 1998 1999 Year Displaced Axes The increase in price was not as big as it appeared to be. 20 000 40 000 80 000 Average House Price 1998 1999 Year 0 60 000

3. 0 100 200 300 400 500 600 700 800 900 1000 PizzaHot DogsHamburgers Favourite Food 3 Misleading Graphs Displaced Axes 950 955 960 965 970 975 980 985 990 995 1000 PizzaHot DogsHamburgers Favourite Food Number of Votes The number of votes appears significantly here. The number of votes appears not so significantly here.

4. 4 Misleading Graphs Exaggerated use of Area or Volume. Number of Singles Sold 1995 1996 1997 1998 purple The Brown column looks bigger than the purple column.. But is it? Number of Singles Sold 1995 1996 1997 1998

5. 5 This is bad. The various sized pictures distorts the graph. Misleading Graphs All pictures must be the about the same size.(Area) Dog: Cat: Horse: The Exaggerated use of Area or Volume. Key: 505050 Dog: Cat: Horse: Key: 505050 This is much better

6. 6 Misleading Graphs doubled Sales at Gerry’s Milkbar have doubled from 2007 to 2008. 20072008 The 2008 volume is eight times bigger than the 2007 volume. Exaggerated use of Area or Volume.

7. 7 Misleading Graphs Irregular Scale Axes 1993, 1996 and 1998 are missing.

8. 8 Misleading Graphs Irregular Scale Axes 1993, 1996 and 1998 are added.