1. Data Analysis 2-Way Frequency Table
Goal: I can summarize categorical data for two categories in 2-way frequency tables. (S-ID.5)

2. 2-Way Frequency Table

3. Example:
The table shows the number of students playing spring sports at a local school.
A. How many boys play a spring sport?
Softball
Tennis
Badminton
Total
Girls 57 29 47
133
Boys 32 15 1 48 89 44
181 48

4. Example:
The table shows the number of students playing spring sports at a local school.
B. Which sport is most preferred by boys?
Softball
Tennis
Badminton
Total
Girls 57 29 47
133
Boys 32 15 1 48 89 44
181
Softball

5. Example:
The table shows the number of students playing spring sports at a local school.
C. Which sport is least preferred by girls?
Softball
Tennis
Badminton
Total
Girls 57 29 47
133
Boys 32 15 1 48 89 44
181
Tennis

6. Example:
The table shows the number of students playing spring sports at a local school.
D. How many tennis players are girls?
Softball
Tennis
Badminton
Total
Girls 57 29 47
133
Boys 32 15 1 48 89 44
181 29

7. Example:
The table shows the number of students playing spring sports at a local school.
E. How many softball players are boys?
Softball
Tennis
Badminton
Total
Girls 57 29 47
133
Boys 32 15 1 48 89 44
181 32

8. Example:
The table shows the number of students playing spring sports at a local school.
F. How many badminton players are there?
Softball
Tennis
Badminton
Total
Girls 57 29 47
133
Boys 32 15 1 48 89 44
181 48

9. Example:
At a wedding reception, the guests have a choice of chicken or steak for dinner.
How many guests 40 years or older prefer steak?
Which meal is most preferred by those under 40?
Which meal is preferred least by those 40 or older?
How many people prefer steak?
Chicken
Steak
Total
Under 40 19 97
116
40 or Older 54 12 66 73
109
182 19
Steak
Chicken
109

10. Example: Chicken Steak Total Under 40 19 97 116 40 or Older 54 12 66
Choose the correct response for the table below.
A. More people prefer chicken. However, more people under 40 prefer steak.
B. More people prefer chicken. Also, more people under 40 prefer chicken.
C. More people prefer steak. Also, more people 40 or older prefer steak.
D. More people prefer steak. However, more people under 40 prefer chicken.
Chicken
Steak
Total
Under 40 19 97
116
40 or Older 54 12 66 73
109
182

11. Complete a two-way frequency table for the following figures.

12. What is the least common shape?

13. Two-way Relative Frequency Chart
Each entry represents the frequency of an individual event relative to all observations in the table
2-Way Frequency Chart
2-Way Relative Frequency Chart

14. Use the data to complete a two-way relative frequency chart.