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Notes 53

Notes 53. Choosing an Appropriate Display. x x x x x x. 1 7 9 2 5 3 6 1. There are several ways to display data. Some types of displays are more appropriate than others, depending on how the data is to be analyzed. Use a bar graph to display and compare data.

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Notes 53

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  1. Notes 53 Choosing an Appropriate Display

  2. x x x x x x 1 7 9 2 5 3 6 1 There are several ways to display data. Some types of displays are more appropriate than others, depending on how the data is to be analyzed. Use a bar graph to display and compare data. Use a line plot to show the frequency of values. Use a stem-and-leaf plot to show how often data values occur and how they are distributed.

  3. Use a circle graph to show how a set of data is divided into parts. Use a line graph to show how data change over a time period. Use a Venn Diagram to show relationships between two or more data sets.

  4. Butterfly Family Number of Species Gossamer-wing 7 Skippers 10 Swallowtails 5 Whites and sulphurs 4 Additional Example 1A: Choosing an Appropriate Display The students want to create a display to show each species of butterfly as a percentage of all species in the butterfly family. Which type of graph would they use? Explain. Circle graph; each listed species is a part of the whole population.

  5. Additional Example 1B: Choosing an Appropriate Display Visitors to the park record how many times they see a member of one of the four butterfly families during their visit. You want to make a display of how many times a member of each butterfly family was spotted. Which type of graph would you use? Explain. I would use a bar graph because this display makes it easy to compare families.

  6. Rose Family Number of Species in the Garden English 23 Hybrid Teas 13 Standard Tree 14 Miniature 2 Check It Out: Example 1 Which type of display should you use to show how many different species from four rose families there are in a garden? Explain.

  7. Months Visitors May 432 June 657 July 856 August 723 Additional Example 2: Identifying the Most Appropriate Display The table shows the number of visitors to the butterfly park during a four month period. Explain why each kind of display would or would not appropriately represent the data.

  8. Months Visitors May 432 June 657 July 856 August 723 Additional Example 2A: Identifying the Most Appropriate Display Circle Graph A circle graph shows how a set of data is divided into parts. The circle graph does not accurately display the number of visitors per month, so it is not appropriate in representing the data.

  9. Months Visitors May 432 June 657 July 856 August 723 Additional Example 2B: Identifying the Most Appropriate Display Bar Graph A bar graph displays and compares data. The bar graph appropriately displays and compares the data and the number of visitors during each month.

  10. Months Visitors May 432 June 657 July 856 August 723 Additional Example 2C: Identifying the Most Appropriate Display Histogram A histogram shows the frequency of data within equal intervals. There are only four pieces of data, which gives four bars of height 1, so the histogram is not appropriate.

  11. Months Visitors May 432 June 657 July 856 August 723 Additional Example 2D: Identifying the Most Appropriate Display Line Graph A line graph shows how data changes over time. The line graph appropriately displays and compares the data and the number of visitors during each month.

  12. Animal Population‏ Koala 16 Chimpanzee 20 Sumatran Tiger 4 Male Gorilla 10 Check It Out: Example 2 The table shows the population of each type of animal at an animal sanctuary. Does the circle graph below appropriately represent the same data? Explain.

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