1. Click the mouse button or press the Space Bar to display the answers.
Transparency 1

2. Splash Screen

3. Organize and interpret data in a frequency table
Objective
Organize and interpret data in a frequency table
Example 1-3b

4. Collecting, organizing, and interpreting data
Vocabulary
Statistics
Collecting, organizing, and interpreting data
Example 1-3b

5. Vocabulary Data Pieces of information
Example 1-3b

6. Shows the number of pieces of data that fall within given intervals
Vocabulary
Frequency Table
Shows the number of pieces of data that fall within given intervals
Example 1-3b

7. Vocabulary
Scale
The set of all possible values of a given measurement, including the least and greatest numbers in the set, separated by the intervals used
Example 1-3b

8. Separates the scale into equal parts
Vocabulary
Interval
Separates the scale into equal parts
Example 1-3b

9. Counters used to record items in a group
Vocabulary
Tally mark
Counters used to record items in a group
Example 1-3b

10. Example 1 Make a Frequency Table
Example 2 Make and Use a Frequency Table
Example 3 Interpret Data
Lesson 1 Contents

11. 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23
Winning Scores
Source: superbowl.com
FOOTBALL Winning Super Bowl scores from 1983 to 2002 are listed below. Make a frequency table of the data.
You need a ruler!
Make a frequency table with at least 6 rows using the lines on your paper
1/3
Example 1-1a

12. A frequency table needs 3 columns 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23
Winning Scores
Source: superbowl.com
FOOTBALL Winning Super Bowl scores from 1983 to 2002 are listed below. Make a frequency table of the data.
A frequency table needs 3 columns
Leave the top row with no columns for the title
1/3
Example 1-1a

13. Winning Scores Scores Tally Frequency27 38 46 39 42 20 55 37 52 30 49 35 31 34 23
Winning Scores
Source: superbowl.com
Winning Scores
Scores
Tally
Frequency
Add Title
Add headings to chart
The data in the first column which is “scores”
The second column is labeled “tally”
The third column is “frequency”
1/3
Example 1-1a

14. Winning Scores Scores Tally Frequency27 38 46 39 42 20 55 37 52 30 49 35 31 34 23
Winning Scores
Source: superbowl.com
Winning Scores
Scores
Tally
Frequency
Choose an appropriate scale and interval for the data
Determine the smallest number
Determine the largest number
1/3
Example 1-1a

15. Winning Scores Scores Tally Frequency27 38 46 39 42 20 55 37 52 30 49 35 31 34 23
Winning Scores
Source: superbowl.com
Winning Scores
Scores
Tally
Frequency
20-29
30-39
40-49
50-59
The interval must be the same on each row
Since the smallest number is 20 use for the first interval
The interval is 10 so add 10 to each number to make a new interval
1/3
Example 1-1a

16. Winning Scores Scores Tally Frequency27 38 46 39 42 20 55 37 52 30 49 35 31 34 23
Winning Scores
Source: superbowl.com
Winning Scores
Scores
Tally
Frequency
20-29 I
30-39 I I
40-49 I
50-59 I
Make a tally mark for each number
20 is in the group of
31 is in the group of
30 is in the group of
55 is in the group of
46 is in the group of
1/3
Example 1-1a

17. Winning Scores Scores Tally Frequency27 38 46 39 42 20 55 37 52 30 49 35 31 34 23
Winning Scores
Source: superbowl.com
Winning Scores
Scores
Tally
Frequency
20-29 I I
30-39 I I I I
40-49 I
50-59 I I
34 is in the group of
On the 5th tally put a diagonal across the other 4 tally marks
35 is in the group of
52 is in the group of
20 is in the group of
38 is in the group of
1/3
Example 1-1a

18. Winning Scores Scores Tally Frequency27 38 46 39 42 20 55 37 52 30 49 35 31 34 23
Winning Scores
Source: superbowl.com
Winning Scores
Scores
Tally
Frequency
20-29 I I I I
30-39 I I I I I I
40-49 I I
50-59 I I
23 is in the group of
27 is in the group of
37 is in the group of
42 is in the group of
38 is in the group of
1/3
Example 1-1a

19. Winning Scores Scores Tally Frequency27 38 46 39 42 20 55 37 52 30 49 35 31 34 23
Winning Scores
Source: superbowl.com
Winning Scores
Scores
Tally
Frequency
20-29 I I I I I
30-39 I I I I I I I I
40-49 I I I
50-59 I I
34 is in the group of
49 is in the group of
20 is in the group of
39 is in the group of
27 is in the group of
1/3
Example 1-1a

20. Winning Scores Scores Tally Frequency 6 9 3 2
Answer: 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23
Winning Scores
Source: superbowl.com
Winning Scores
Scores
Tally
Frequency
20-29 I I I I I 6
30-39 I I I I I I I I 9
40-49 I I I 3
50-59 I I 2
Count the tally marks and put the number in the frequency column
1/3
Example 1-1a

21. TEMPERATURE The daily high temperatures for the last two weeks of August in Cleveland, Ohio are listed below. Make a frequency table of the data.
High Temperature (F)
1/3
Example 1-1b

22. Answer: High Temperature (F0) 2 II 90-99 7 IIII II 80-89 4 IIII 70-791 I
60-69
Frequency
Tally
Points
1/3
Example 1-1b

23. Favorite Types of Music
MUSIC Kaley asked her classmates about their favorite types of music. The results are shown in the table. Make a frequency table of the data. Then determine the favorite and least favorite types of music.
There are 5 categories F P R J C
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Make a frequency table with 7 rows using the lines on your paper
2/3
Example 1-2a

24. A frequency table needs 3 columns
Leave the top row with no columns for the title
2/3
Example 1-2a

25. Favorite Types of MusicJ C
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Favorite Types of Music
Type of Music
Tally
Frequency
Add Title
Add headings to chart
The data in the first column which is “type of music”
The second column is labeled “tally”
The third column is “frequency”
2/3
Example 1-2a

26. Favorite Types of MusicJ C
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Favorite Types of Music
Type of Music
Tally
Frequency
Rock (R)
Jazz (J)
Country (C)
Top 40 (F)
Rap (P)
When there are letters there is no need for intervals
Write in the categories - DO NOT abbreviate, then put the symbol in parenthesis
2/3
Example 1-2a

27. Favorite Types of MusicJ C
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Favorite Types of Music
Type of Music
Tally
Frequency
Rock (R)
Jazz (J) I
Country (C) I
Top 40 (F) I I
Rap (P) I
Mark a tally mark for each letter
2/3
Example 1-2a

28. Favorite Types of MusicJ C
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Favorite Types of Music
Type of Music
Tally
Frequency
Rock (R) I I I
Jazz (J) I I
Country (C) I
Top 40 (F) I I
Rap (P) I I
2/3
Example 1-2a

29. Favorite Types of MusicJ C
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Favorite Types of Music
Type of Music
Tally
Frequency
Rock (R) I I I I
Jazz (J) I I
Country (C) I
Top 40 (F) I I I I
Rap (P) I I I
2/3
Example 1-2a

30. Favorite Types of MusicJ C
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Favorite Types of Music
Type of Music
Tally
Frequency
Rock (R) I I I I
Jazz (J) I I
Country (C) I I
Top 40 (F) I I I I
Rap (P) I I I I I
2/3
Example 1-2a

31. Favorite Types of MusicJ C
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Favorite Types of Music
Type of Music
Tally
Frequency
Rock (R) I I I I
Jazz (J) I I
Country (C) I I
Top 40 (F) I I I I I I I
Rap (P) I I I I I I I
2/3
Example 1-2a

32. Favorite Types of MusicJ C
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Favorite Types of Music
Type of Music
Tally
Frequency
Rock (R) 5 I I I I
Jazz (J) I I 2
Country (C) I I 2
Top 40 (F) I I I I I I I 8
Rap (P) I I I I I I I 8
Count the tally marks and put the number in the frequency column
2/3
Example 1-2a

33. Favorite Types of Music
Then determine the favorite and least favorite types of music.
Answer:
Favorite Types of Music
Favorite will have the most frequency
Type of Music
Tally
Frequency
Rock (R) 5 I I I I
There are 2 favorites Top 40 and Rap
Jazz (J) I I 2
Country (C) I I 2
Least favorite will have the least frequency
Top 40 (F) I I I I I I I 8
Rap (P) I I I I I I I 8
There are 2 least favorites Jazz and Country
Favorite - Top 40 and Rap
Least Favorite - Jazz and Country
2/3
Example 1-2a

34. Then determine the favorite and least favorite colors.
COLORS Samantha asked her classmates about their favorite colors. The results are shown in the table. Make a frequency table of the data.
Then determine the favorite and least favorite colors. Y B P R L
Favorite Colors
Y=yellow, R=red, B=blue, P=pink, L=purple
2/3
Example 1-2b

35. Least favorite - purple
Answer:
Favorite Color 2 II
purple 4
IIII
pink 3
III
blue
red 7
IIII II
yellow
Frequency
Tally
Color
Favorite - yellow
Least favorite - purple
2/3
Example 1-2b

36. Record High Temperatures in US
TEMPERATURE The frequency table shows the record high temperatures reported by each state of the United States. How many states have reported temperatures above 111?
above
The key is “above” 1110
Record High Temperatures in US 12 5
Frequency 1 I
130–135 2 II
124–129 14
IIII IIII IIII
118–123 16
IIII IIII IIII I
112–117
IIII IIII II
106–111
IIII
100–105
Tally
Temp (F)
Add the frequency of all temperatures above 1110
Answer:
33 states
3/3
Example 1-3a

37. *
WEIGHT The frequency table shows the results of a survey of the weights of boys in a seventh grade class. How many of the boys weigh less than 100 pounds?
7th Grade Boys Weight 5 3
Frequency 1 I 4
IIII 8
IIII III 7
IIII II
90-99
80-89
III
70-79
Tally
Weight
Answer: 15
3/3
Example 1-3b

38. Assignment
Lesson 2:1
Frequency Tables
All
End of Lesson 1