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Lesson 12-4 Pages 623-628

Lesson 12-4 Pages 623-628. Histograms. What you will learn!. How to display data in a histogram. How to interpret data in a histogram. Vocabulary. What you really need to know!.

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Lesson 12-4 Pages 623-628

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  1. Lesson 12-4Pages 623-628 Histograms

  2. What you will learn! • How to display data in a histogram. • How to interpret data in a histogram.

  3. Vocabulary

  4. What you really need to know! A histogram uses bars to display data that have been organized into equal intervals. It is a special type of bar graph.

  5. What you really need to know! • There is no space between bars. • All bars have the same width.

  6. Example 1: The frequency table shows the number of overseas visitors to certain U.S. cities in 1999. Display the data in a histogram.

  7. Number of U.S. Cities Number of Visitors

  8. Example 2: Use the histogram. How many states have highest points with elevations at least 3,751 meters? 12

  9. Example 2: Use the histogram. Is it possible to tell the height of the tallest point? NO! You can only tell it is between 5,001 and 6,250 meters.

  10. Example 3: Use the histograms. Services! Which business sector has more states between 1,001,000 and 3,000,000 employees?

  11. Page 625 Guided Practice #’s 3-10

  12. Read: Pages 623-624 with someone at home and study examples!

  13. Homework: Pages 626-628 #’s 12, 14, 15-19 #’s 27-28, 32-35 Lesson Check 12-4

  14. Page 753 Lesson 12-4

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