Misleading Graphs Lesson Quiz

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The data on the right suggests that the AR program appears to be helping the students. A group of lazy students want to make a graph to help convince the PTA that AR is a waste of money. Which of the following would be the least flattering scale?
1. 0 - 200
2. 50 - 200
3. 0 - 500
4. 50 - 500
What aspect of the graph was used to mislead the reader?
1. variable bar width
2. colors
3. variable interval
4. scale is broken
What will the 7th grade need to do to make this graph more fair?
1. Change the colors.
2. Change the width of the bars.
3. Change the numbers.
4. Change the scale
Which of the following is Emily's bowling average?
1. 127
2. 109
3. 121
4. 122
Emily's bowling average is 12 points higher than Hilde's. For bowling, that is a lot. How has Hilde mislead you with her graph of the girl's averages?
1. variable bar width
2. colors
3. variable interval
4. scale is too large