LESSON Relative Frequency and Probability 8-2
Practice and Problem Solving: A/B
The two-way frequency table below represents the results of a survey
about favorite forms of entertainment. In Exercises 1-3, write
fractions that are not simplified as responses.
Like Board Games
Like Reading Yes
No Total
Yes
48
25
73
No
43
9
52
Total
91
34 125
1. Find the joint relative frequency of people surveyed who like
to read but dislike playing board games.
2. What is the marginal relative frequency of people surveyed who
like to read?
3. Given someone interested in reading, is that person more or less likely
to take an interest in playing board games? Explain.
4. Given someone interested in board games, is that person more or less
likely to take an interest in reading? Explain your response.
The two-way frequency table below represents the results of a survey
about ways students get to school.
Type of Transportation
Grade On Foot
By Car
By Bus Total
9
15
28
64
107
10
20
30
43
93
Total 35
58
107 200