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9-5

9-5. Displaying Data. Warm Up. Problem of the Day. Lesson Presentation. Course 3. 9-5. Displaying Data. Course 3. Warm Up Write each fraction as a decimal. 1. 2. 3. 4. 49 50. 2 5. 0.4. 0.98. 7 10. 3 50. 0.06. 0.7. 9-5. Displaying Data. Course 3. Problem of the Day

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9-5

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  1. 9-5 Displaying Data Warm Up Problem of the Day Lesson Presentation Course 3

  2. 9-5 Displaying Data Course 3 Warm Up Write each fraction as a decimal. 1. 2. 3.4. 49 50 2 5 0.4 0.98 7 10 3 50 0.06 0.7

  3. 9-5 Displaying Data Course 3 Problem of the Day Your job at the local library is to shelve the returned books. To correctly put the books on the shelves, you need to arrange them in order according to their numbers. Which order is correct? C A. 342.3, 342.5, 342.48, 342.52 B. 342.21, 342.47, 342.4, 342.59 C. 342.1, 342.17, 342.56, 342.76 D. 342.34, 342.43, 342.567, 342.56

  4. 9-5 Displaying Data Course 3 Learn to display data in bar graphs, histograms, and line graphs.

  5. 9-5 Displaying Data Course 3 Insert Lesson Title Here Vocabulary double-bar graph frequency table histogram double-line graph

  6. 9-5 Displaying Data Course 3 A double-bar graph is used to display and compare two sets of data. You can organize data using a frequency table by listing items according to the number of times the items occur.

  7. 9-5 Displaying Data Course 3 Additional Example 1: Displaying Data in a Double-Bar Graph Make a double-bar graph. The following are the number of books read in one month by some boys and girls in Grade 8.

  8. 9-5 Displaying Data Frequency Books read Course 3 Additional Example 1 Continued Make a double-bar graph. The frequencies are the heights of the bars in the graph. Use a different color to represent each gender.

  9. 9-5 Displaying Data Course 3 Check It Out: Example 1 Make a double-bar graph. The following are the number of tickets sold in one week by the boys and girls in Grade 8.

  10. 9-5 Displaying Data Frequency Tickets Sold Course 3 Check It Out: Example 1 Continued Make a double-bar graph. The frequencies are the heights of the bars in the graph. Use a different color to represent each gender.

  11. 9-5 Displaying Data Course 3 A histogram is a bar graph that shows the frequency of data within equal intervals.

  12. 9-5 Displaying Data Course 3 Additional Example 2: Displaying Data in a Histogram Jimmy surveyed 12 children to find out how much money they received from the tooth fairy. Use the data to make a histogram. 0.35 2.00 0.75 2.50 1.50 3.00 0.25 1.00 1.00 3.50 0.50 3.00 First, make a frequency table with intervals of $1.00. Then make a histogram.

  13. 9-5 Displaying Data Course 3 Additional Example 2 Continued 0.35 2.00 0.75 2.50 1.50 3.00 0.25 1.00 1.00 3.50 0.50 3.00 Money ($) Frequency 0 – 0.99 4 1.00 – 1.99 3 2.00 – 2.99 2 3.00 – 3.99 3

  14. 9-5 Displaying Data Frequency Helpful Hint Histograms do not have spaces between the bars. Course 3 Additional Example 2 Continued

  15. 9-5 Displaying Data Course 3 Check It Out: Example 2 Tonya surveyed 14 children at an after school day care to find out how many hours they spend there. Use the data to make a Histogram. 2:00 1:40 3:00 0:30 1:00 1:30 2:30 0:30 2:45 1:00 2:00 1:35 1:30 3:00 First, make a frequency table with intervals of 30 minutes. Then make a histogram.

  16. 9-5 Displaying Data Course 3 Check It Out: Example 2 Continued 2:00 1:40 3:00 0:30 1:00 1:30 2:30 0:30 2:45 1:00 2:00 1:35 1:30 3:00

  17. 9-5 Displaying Data Hours Spent at Day Care 5 4 Frequency 3 2 1 0 0:00 to 0:31 to 1:01 to 1:31 to 2:01 to 2:31 to 0:30 1:00 1:30 2:00 2:30 3:00 Course 3 Check It Out: Example 2 Continued

  18. 9-5 Displaying Data Course 3 A double-line graph is used to show how two related sets of data change over time.

  19. 9-5 Displaying Data Course 3 Additional Example 3: Displaying Data in a Double-Line Graph Make a double-line graph of the given data. Use the graph to estimate the number of CDs and DVDs sold in 2003. The Music Shop CD and DVD Sales

  20. 9-5 Displaying Data The Music Shop CD and DVD Sales Number Sold Year Course 3 Additional Example 3 Continued Plot the data. The graph shows about 5,250 CDs and 3,500 DVDs were sold in 2003.

  21. 9-5 Displaying Data Course 3 Check It Out: Example 3 Make a double-line graph of the given data. Use the graph to estimate the number of Strawberries and Figs grown in 2002. Perry's Strawberry-Fig Farm Sales

  22. 9-5 Displaying Data Perry’s Strawberry-Fig Farm Sales Number Sold Year Course 3 Check It Out: Example 3 Continued Plot the data. The graph shows about 6,250 Strawberry Baskets and 2,800 Figs were sold in 2002.

  23. 9-5 Displaying Data 8 7 6 5 4 3 2 1 Frequency 0-4 5-9 10-14 15-19 Course 3 Insert Lesson Title Here Lesson Quiz: Part I 1. Make a histogram with intervals of 5 using the following data set: 7, 12, 8, 4, 4, 3, 6, 1, 14, 19, 8, 9

  24. 9-5 Displaying Data Course 3 Insert Lesson Title Here Lesson Quiz: Part II 2. Estimate the temperature on January 6 in 2004 and 2005 using the graph below. 2005: 31°C, 2004: 30°C

  25. 9-5 Displaying Data Course 3 Insert Lesson Title Here Lesson Quiz: Part III Use the graph for problems 3–4. 3. On what day did both girls exercise for 30 minutes? Friday 4. On what day(s) did Ana exercise longer than Sue? Monday, Wednesday, Thursday, and Saturday

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