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Austin Menger
STAT 1100Q
1
Midterm 1 Practice Exam - 1100Q Fall 2021
Name:
ID Number:
Please round all decimals to 2 points to the right of the decimal, and do not use
Minitab for any of the questions. Relax and do your best. That’s all you can ever
ask from yourself in life.
1. (5 points) Which of the following is a major advantage of using the EDA approach over
the Classical approach to statistics?
A. There are assumptions placed on the data in the EDA approach
B. The EDA approach doesn’t use all of the data
C. The EDA approach doesn’t incorporate graphical summaries of the data
D. The EDA approach tells you what’s not in the data
E. All the above
2. (5 points) The New York Knicks, having been in a bit of a slump the past decade, decided
to increase the use of analytics in recruiting. They want to know where the tallest
people are from. So, to do so, the analytics team looked at a sample of all men currently
in the NBA seven feet tall and higher. They then recorded from which continent the
player was from and their height in an effort to focus their resources on one key
geographic location. Which graphical and corresponding numerical summary is most
appropriate for the data? (Hint: if there is more than 1 variable, are we interested in the
relationship between the variables?)
A. Pie Chart; Category Counts & Percentages
B. Histogram; Descriptive Stats
C. Side-by-side boxplots; descriptive statistics of the response for each level of the
explanatory variable
D. Contingency table; conditional percentages of the response for each level of the
explanatory variable separately
E. Scatterplot; correlation coefficient
3. (5 points) In an effort to curb cigarette consumption on campus, UConn has funded a
research project to determine if smoking on a daily basis is still here on campus. So, in a
naïve effort to do so, the researchers stood outside of the arena before a basketball
game and asked each person going into the game whether they were a Smoker, Non-
smoker, or Occasional Smoker. What is the “type” of the smoker status variable?
A. Quantitative (Continuous)
B. Quantitative (Discrete)
C. Categorical (Ordinal)
D. Categorical (Nominal)
E. Quantitative (Ordinal)
Austin Menger
STAT 1100Q
2
4. (5 points) Describe the mode and peakedness of the following dataset:
1,2,3,3,4,4,5,5,5,6,7
A. Mode is 5; unimodal
B. Mode is 4; uniform
C. Modes are 3 & 4; bimodal
D. Mode is 3; unimodal
E. There is no mode.
5. (5 points) What is the standard deviation of the following dataset: 2,8,1,5,7,9,10
A. 6
B. 10.29
C. 3.21
D. 3.46
E. 12
6. (5 points) Data pertaining to college tuition is likely skewed left. At least what percent of
universities can we say have tuition costs within 1.13 standard deviations of the mean?
A. At most 12%
