Question
In: Statistics and Probability
Researchers are often interested in the likelihood of sampling outcomes. They may ask questions about the...
Researchers are often interested in the likelihood of sampling outcomes. They may ask questions about the likelihood that a person with a particular characteristic will be selected to participate in a study. In this exercise, we will select a sample of one participant from the following hypothetical student population of men and women living on or off campus. The population is summarized in the following table.
| Male | Female | Row Totals | |
| On Campus | 30 | 25 | 55 |
| Off Campus | 20 | 25 | 45 |
| Column Totals | 20 | 50 | 100 |
1. What is the probability of selecting a male participant?
2. What is the probability of selecting a female participant?
3. What is the probability of selecting a student who lives on campus?
4. What is the probability of selecting a student who lives off campus?
5. What is the probability of selecting a male student, given that he lives off campus?
6. What is the probability of selecting a female student, given that she lives on campus?
7. What is the probability of selecting a male student, given that he lives on campus?
8. What is the probability of selecting a female student, given that she lives off campus?
9. What is the probability of selecting a student who lives on campus, given that he is a male?
10. What is the probability of selecting a student who lives off campus, given that he is a male?
11. What is the probability of selecting a student who lives on campus, given that she is a female?
12. What is the probability of selecting a student who lives off campus, given that she is a female?
Solutions
orchestra answered 1 year agoRelated Solutions
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Researchers are often interested in the rate of political participation based on neighborhood economic conditions. Create...
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Neighborhood
Economic Conditions
Political Participation
1
36.3
16.4
2
29.4
14.8
3
45.6
68.7
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65.3
78.8
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77.4
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56.4
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72.5...
Researchers in mental health fields are often interested in evaluating the effectiveness of using food images...
Researchers in mental health fields are often interested in
evaluating the effectiveness of using food images to enhance
positive mood. Adapting a typical design from such studies, suppose
we have participants rate their mood change on a standard
self-report affect scale after viewing images of "comfort" foods,
fruits/vegetables (F/V), and random non-food images (used as a
control group). The results are given in the table at right for
this hypothetical study.
Images
Control
F/V
Comfort
Foods
0
0
3
0...
Researchers in mental health fields are often interested in evaluating the effectiveness of using food images...
Researchers in mental health fields are often interested in
evaluating the effectiveness of using food images to enhance
positive mood. Adapting a typical design from such studies, suppose
we have participants rate their mood change on a standard
self-report affect scale after viewing images of "comfort" foods,
fruits/vegetables (F/V), and random non-food images (used as a
control group). The results are given in the table at right for
this hypothetical study.
Images
Control
F/V
Comfort
Foods
0
0
3
1...
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9.
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B.
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D.
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