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Transparency 1. Click the mouse button or press the Space Bar to display the answers. Splash Screen. Example 1-3b. Objective. Organize and interpret data in a frequency table. Example 1-3b. Vocabulary. Statistics. Collecting, organizing, and interpreting data. Example 1-3b. Vocabulary. - PowerPoint PPT Presentation
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Click the mouse button or press the Click the mouse button or press the Space Bar to display the answers.Space Bar to display the answers.
Objective
Organize and interpret data in a frequency table
Vocabulary
Statistics
Collecting, organizing, and interpreting data
Vocabulary
Data
Pieces of information
Vocabulary
Frequency Table
Shows the number of pieces of data that fall within given intervals
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
Vocabulary
Interval
Separates the scale into equal parts
Vocabulary
Tally mark
Counters used to record items in a group
Example 1 Make a Frequency Table
Example 2 Make and Use a Frequency Table
Example 3 Interpret Data
FOOTBALL Winning Super Bowl scores from 1983 to 2002 are listed below. Make a frequency table of the data.
27383846
39422055
20375230
49273531
34233420
Winning Scores
Source: superbowl.com
1/3
You need a ruler!
Make a frequency table with at least 6 rows using the lines on your paper
FOOTBALL Winning Super Bowl scores from 1983 to 2002 are listed below. Make a frequency table of the data.
27383846
39422055
20375230
49273531
34233420
Winning Scores
Source: superbowl.com
1/3
A frequency table needs 3 columns
Leave the top row with no columns for the title
27383846
39422055
20375230
49273531
34233420
Winning Scores
Source: superbowl.com
1/3
Add Title
Winning Scores
Add headings to chart
The data in the first column which is “scores”
Scores
The second column is labeled “tally”
Tally
The third column is “frequency”
Frequency
27383846
39422055
20375230
49273531
34233420
Winning Scores
Source: superbowl.com
1/3
Winning Scores
Scores Tally Frequency
Choose an appropriate scale and interval for the data
Determine the smallest number
Determine the largest number
27383846
39422055
20375230
49273531
34233420
Winning Scores
Source: superbowl.com
1/3
Winning Scores
Scores Tally Frequency
The interval must be the same on each row
Since the smallest number is 20 use 20-29 for the first interval
20-29
The interval is 10 so add 10 to each number to make a new interval
30-39
40-49
50-59
27383846
39422055
20375230
49273531
34233420
Winning Scores
Source: superbowl.com
1/3
Winning Scores
Scores Tally Frequency
20-29
30-39
40-49
50-59
Make a tally mark for each number20 is in the group of 20-29
I
31 is in the group of 30-39
I
30 is in the group of 30-39
I
55 is in the group of 50-59
I
46 is in the group of 40-49
I
27383846
39422055
20375230
49273531
34233420
Winning Scores
Source: superbowl.com
1/3
Winning Scores
Scores Tally Frequency
20-29
30-39
40-49
50-59
34 is in the group of 30-39
I
35 is in the group of 30-39
I
52 is in the group of 50-59
I
20 is in the group of 20-29
I
38 is in the group of 30-39
I
II
I
I
On the 5th tally put a diagonal across the other 4 tally marks
27383846
39422055
20375230
49273531
34233420
Winning Scores
Source: superbowl.com
1/3
Winning Scores
Scores Tally Frequency
20-29
30-39
40-49
50-59
23 is in the group of 20-29
I
27 is in the group of 20-29
I
37 is in the group of 30-39
I
42 is in the group of 40-49
I
38 is in the group of 30-39
I
II
I
III
I
I
I
27383846
39422055
20375230
49273531
34233420
Winning Scores
Source: superbowl.com
1/3
Winning Scores
Scores Tally Frequency
20-29
30-39
40-49
50-59
34 is in the group of 30-39
I
49 is in the group of 40-49
I
20 is in the group of 20-29
I
39 is in the group of 30-39
I
27 is in the group of 20-29
I
II
I
III
I
I
II
I
I
I
27383846
39422055
20375230
49273531
34233420
Winning Scores
Source: superbowl.com
1/3
Winning Scores
Scores Tally Frequency
20-29
30-39
40-49
50-59
I
I I
I
I
II
I
III
I
I
II
I
I
I
Count the tally marks and put the number in the frequency column
6
9
32
Answer:
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)
83 85 76 88 69 75 8190 83 72 79 81 83 92
1/3
Answer:
2II90-99
7IIII II80-89
4IIII70-79
1I60-69
FrequencyTallyPoints
1/3
High Temperature (F0)
FPPRJ
FRRJC
PCFPF
PPFRF
FPFRP
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
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.
2/3
Make a frequency table with 7 rows using the lines on your paper
There are 5 categories
2/3
A frequency table needs 3 columns
Leave the top row with no columns for the title
2/3
FPPRJFRRJCPCFPFPPFRFFPFRP
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Add Title
Favorite Types of Music
Add headings to chart
Type of Music Tally
The data in the first column which is “type of music”
The second column is labeled “tally”
The third column is “frequency”
Frequency
2/3
FPPRJFRRJCPCFPFPPFRFFPFRP
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Favorite Types of Music
Type of Music Tally Frequency
When there are letters there is no need for intervals
Write in the categories - DO NOT abbreviate, then put the symbol in parenthesis
Rock (R)
Jazz (J)
Country (C)
Top 40 (F)
Rap (P)
2/3
FPPRJFRRJCPCFPFPPFRFFPFRP
Favorite Types of Music
R=rock, J=jazz, C=country, F=top 40, P=rap
Favorite Types of Music
Type of Music Tally Frequency
Mark a tally mark for each letter
Rock (R)
Jazz (J)
Country (C)
Top 40 (F)
Rap (P) I
II
I
I
2/3
FPPRJFRRJCPCFPFPPFRFFPFRP
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) I
II
I
I
II
I
I
I
2/3
FPPRJFRRJCPCFPFPPFRFFPFRP
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) I
II
I
I
II
I
I
I
II
I
I
2/3
FPPRJFRRJCPCFPFPPFRFFPFRP
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) I
II
I
I
II
I
I
I
II
I
II
I
I
2/3
FPPRJFRRJCPCFPFPPFRFFPFRP
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) I
II
I
I
II
I
I
I
II
I
II
I
I
I
II
II
2/3
FPPRJFRRJCPCFPFPPFRFFPFRP
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) I
II
I
I
II
I
I
I
II
I
II
I
I
I
II
II
Count the tally marks and put the number in the frequency column
5
2
2
8
8
2/3
Favorite Types of Music
Type of Music Tally Frequency
Rock (R)
Jazz (J)
Country (C)
Top 40 (F)
Rap (P) I
II
I
I
II
I
I
I
II
I
II
I
I
I
II
II
Favorite will have the most frequency
5
2
2
8
8
Then determine the favorite and least favorite types of music.
There are 2 favorites Top 40 and Rap
Least favorite will have the least frequency
There are 2 least favorites Jazz and Country
Answer:
Favorite - Top 40 and Rap
Least Favorite - Jazz and Country
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.
YBYPY
RYBPR
YLRYP
LPBRY
Favorite Colors
Y=yellow, R=red, B=blue, P=pink, L=purple
2/3
Favorite ColorAnswer:
2IIpurple
4IIIIpink
3IIIblue
4IIIIred
7IIII IIyellow
FrequencyTallyColor
2/3
Favorite - yellow
Least favorite - purple
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?
12
5
Frequency
1I130–135
2II124–129
14IIII IIII IIII118–123
16IIII IIII IIII I112–117
IIII IIII II106–111
IIII100–105
TallyTemp (F)
3/3
The key is “above” 1110
Add the frequency of all temperatures above 1110
Answer:
33 states
above
7th Grade Boys Weight
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?
Answer: 15
5
3
Frequency
1I120-129
4IIII110-119
8IIII III100-109
7IIII II90-99
IIII80-89
III70-79
TallyWeight
*
3/3
Assignment
Lesson 2:1 Frequency Tables 4 - 12 All
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