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Example 1: Misleading Bar Graphs Why is this bar graph misleading?

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Example 2: Misleading Bar Graphs What might people believe from the misleading graph? 1 2 __ 1 2

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Example 3 Why is this bar graph misleading? 600 550 540 530 580 570 560 Dollars Money Raised 4th graders 5th graders 6th graders

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Example 4 What might people believe from the misleading graph? 590 550 540 530 580 570 560 Dollars Money Raised 4th graders 5th graders 6th graders

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Example 5: Misleading Line Graphs Why are these graphs misleading?

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Example 6: Misleading Line Graphs What might people believe from these misleading graphs?

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Example 7: Misleading Line Graphs Why is this line graph misleading?

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Example 8 Why are these graphs misleading? Week Temperature (°F) September November

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Example 10 Why is this line graph misleading? 0 50 60 70 80 1985 1990 1995 2000 Stock prices Year Price of stock ($) Corp. C Corp. D

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A stem-and-leaf plot shows data arranged by place value. You can use a stem-and-leaf plot when you want to display data in an organized way that allows you to see each value. VOCABULARY

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Example 11: Creating Stem-and-Leaf Plots Use the data in the table to make a stem-and- leaf plot. 8679998488 9491838675 Test Scores

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To write 42 in a stem-and-leaf plot, write each digit in a separate column. 4 2 Helpful Hint Stem Leaf

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Example 12 Use the data in the table to make a stem-and- leaf plot. 6774768384 6179648872 Test Scores

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Example 13: Reading Stem-and-Leaf Plots Find the least value, greatest value, mean, median, mode, and range of the data. StemsLeaves 4 5 6 0 0 1 5 7 1 1 2 4 3 3 3 5 9 9 7 8 9 0 4 4 3 6 7 1 4 The least stem and least leaf give the least value, 40. The greatest stem and greatest leaf give the greatest value, 94. Key: 4 0 means 40

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