1. 5 Minute Check The data set is scores for the last science test. Make a frequency table. 7, 9, 8, 7, 8, 9, 6, 8, 1, 2, 6, 5, 2, 3, 8, 9, 9, 3, 4, 6, 2, 4

2. 5 Minute Check The data set is scores for the last science test. Make a frequency table. 7, 9, 8, 7, 8, 9, 6, 8, 1, 2, 6, 5, 2, 3, 8, 9, 9, 3, 4, 6, 2, 4 ScoresTallyFrequency 0-2 I I 4 3-5 I I 5 6-8 I I I I 9 9-11 I I 4 Science Test Scores

3. Flashcards

4. Thursday, March 20 Chapter 12.2b Histograms

5. Objective: To construct and analyze histograms.

6. Histograms At the end of this lesson you should be able to answer the following question. Why would you create a frequency table before you create a histogram?

7. Histograms A histogram is a type of bar graph used to display numerical data that has been organized into equal intervals.

8. Histograms Cost of Planes Number of Planes

9. Histograms How many remote control airplanes cost at least $100? Cost of Planes Number of Planes

10. Histograms How many remote control airplanes cost at least $100? 2 + 0 + 1 = 3 Cost of Planes Number of Planes

11. Histograms How many remote control airplanes cost less than $75? Cost of Planes Number of Planes

12. Histograms How many remote control airplanes cost less than $75? 9 + 7= 16 Cost of Planes Number of Planes

13. Histograms The histogram shows the wins for basketball league teams. How many teams won 31 games or more?

14. Histograms The histogram shows the wins for basketball league teams. How many teams won 31 games or more? 4 + 10 + 8 = 22

15. Histograms The histogram shows the wins for basketball league teams. How many teams won 40 games or less?

16. Histograms The histogram shows the wins for basketball league teams. How many teams won 40 games or less? 2 + 4 + 4 = 10

17. Histograms Histograms are an excellent way to show continuous data; such as weight, height, and how much time.

18. Histograms When the data is in categories ( such as favorite movies or countries), a bar graph is a better choice.

19. Histograms The table represents the number of daily visitors to certain state parks. Draw a histogram to represent the data. How to Draw a Histogram. Step 1 - Transfer the intervals (1 st column) to the horizontal axis of the graph and label.

20. Histograms The table represents the number of daily visitors to certain state parks. Draw a histogram to represent the data. How to Draw a Histogram. Step 1 - Transfer the intervals (1 st column) to the horizontal axis of the graph and label.

21. Histograms The table represents the number of daily visitors to certain state parks. Draw a histogram to represent the data. How to Draw a Histogram. Step 2 - Transfer the frequency data to the vertical axis of the graph and label. The numbers should begin at zero.

22. Histograms The table represents the number of daily visitors to certain state parks. Draw a histogram to represent the data. How to Draw a Histogram. Step 2 - Transfer the frequency data to the vertical axis of the graph and label. The numbers should begin at zero.

23. Histograms The table represents the number of daily visitors to certain state parks. Draw a histogram to represent the data. How to Draw a Histogram. Step 3 - For each interval draw a bar whose height is given by the frequencies.

24. Histograms The table represents the number of daily visitors to certain state parks. Draw a histogram to represent the data. How to Draw a Histogram. Step 3 - For each interval draw a bar whose height is given by the frequencies.

25. Histograms The table represents the number of daily visitors to certain state parks. Draw a histogram to represent the data. How to Draw a Histogram. Step 4 - Title the graph.

26. Histograms The table represents the number of daily visitors to certain state parks. Draw a histogram to represent the data. How to Draw a Histogram. Step 4 - Title the graph.

27. Histograms The table shows state sales tax rates. Draw a histogram to represent the data. Do this on your own.

28. Histograms The table shows state sales tax rates. Draw a histogram to represent the data.

29. Histograms The table shows the number of books a class read over vacation. Draw a histogram to represent the data. Do this on your own.

30. Histograms The table shows the number of books a class read over vacation. Draw a histogram to represent the data.

31. Histograms The data set below lists the ages of students who attended summer camp. Make a frequency table and histogram to represent the data. 8, 10, 4, 14, 6, 11, 7, 14, 5, 8, 12, 4, 13, 14 Do this on your own.

32. Histograms The data set below lists the ages of students who attended summer camp. Make a frequency table and histogram to represent the data. 8, 10, 4, 14, 6, 11, 7, 14, 5, 8, 12, 4, 13, 14 AgesTallyFrequency 2-5 I I I 3 6-9 I I 4 10-13 I I 4 14-17 I I I 3

33. Histograms The data set below lists the ages of students who attended summer camp. Make a frequency table and histogram to represent the data. 8, 10, 4, 14, 6, 11, 7, 14, 5, 8, 12, 4, 13, 14 AgesTallyFrequency 2-5 I I I 3 6-9 I I 4 10-13 I I 4 14-17 I I I 3 Student Ages at Summer Camp

34. Histograms The data set below lists the ages of students who attended summer camp. Make a frequency table and histogram to represent the data. 8, 10, 4, 14, 6, 11, 7, 14, 5, 8, 12, 4, 13, 14 AgesTallyFrequency 2-5 I I I 3 6-9 I I 4 10-13 I I 4 14-17 I I I 3 Student Ages at Summer Camp

35. Histograms The data set below lists the ages of students who attended summer camp. Make a frequency table and histogram to represent the data. 8, 10, 4, 14, 6, 11, 7, 14, 5, 8, 12, 4, 13, 14 AgesTallyFrequency 2-5 I I I 3 6-9 I I 4 10-13 I I 4 14-17 I I I 3 Student Ages at Summer Camp

36. Histograms Why would you create a frequency table before you create a histogram?

37. Histograms Agenda Notes Homework– Homework Practice 12-2b Due Friday, March 21 Chapter 11/12 Test – Tuesday, March 25