MATH 120: INTRODUCTION
TO STATISTICS LIME
SPRING WEEK 8 FINAL
EXAM QUESTIONS AND
ANSWERS
1. 10 students take an exam and earn the following scores: 86, 96, 90, 92, 79,
94, 86, 74, 82, and 91 What is the mean of the scores?
A: 87.
2. 10 students take an exam and earn the following scores: 86, 96, 90, 92, 79,
94, 86, 74, 82, and 91 What is the median of the scores?
A: 88.
3. 10 students take an exam and earn the following scores: 86, 96, 90, 92, 79,
94, 86, 74, 82, and 91 What is the mode of the scores?
A: 86.
4. While conducting market research, an automobile manufacturer looks at
the number of SUVs and sedans produced in the prior year. What type of
data is this?
A: Quantitative data.
5. While conducting market research, an automobile manufacturer asks
consumers about their preferences between SUVs and sedans. What type
, of data is this?
A: Qualitative data.
6. A political think tank wants to conduct a poll of likely voters in a state. If
the think tank breaks the state into 20 groups with common characteristics
and then randomly samples each group, what type of sampling is this?
A: Stratified sampling.
7. A research team at a medical device manufacturer wants FDA approval for
the manufacturer's latest product. The team sets up a study where half of
the participants in the study use the device and half of the participants in
the study do not. When the study is over, the research team compares the
results of the two groups. Which type of study is this?
A: Experimental study.
8. If 10,000 students take a standardized test, which type of graph would
be most helpful for understanding the data?
A: A histogram..
TO STATISTICS LIME
SPRING WEEK 8 FINAL
EXAM QUESTIONS AND
ANSWERS
1. 10 students take an exam and earn the following scores: 86, 96, 90, 92, 79,
94, 86, 74, 82, and 91 What is the mean of the scores?
A: 87.
2. 10 students take an exam and earn the following scores: 86, 96, 90, 92, 79,
94, 86, 74, 82, and 91 What is the median of the scores?
A: 88.
3. 10 students take an exam and earn the following scores: 86, 96, 90, 92, 79,
94, 86, 74, 82, and 91 What is the mode of the scores?
A: 86.
4. While conducting market research, an automobile manufacturer looks at
the number of SUVs and sedans produced in the prior year. What type of
data is this?
A: Quantitative data.
5. While conducting market research, an automobile manufacturer asks
consumers about their preferences between SUVs and sedans. What type
, of data is this?
A: Qualitative data.
6. A political think tank wants to conduct a poll of likely voters in a state. If
the think tank breaks the state into 20 groups with common characteristics
and then randomly samples each group, what type of sampling is this?
A: Stratified sampling.
7. A research team at a medical device manufacturer wants FDA approval for
the manufacturer's latest product. The team sets up a study where half of
the participants in the study use the device and half of the participants in
the study do not. When the study is over, the research team compares the
results of the two groups. Which type of study is this?
A: Experimental study.
8. If 10,000 students take a standardized test, which type of graph would
be most helpful for understanding the data?
A: A histogram..
