Multiple Choice
Review
Chapters 1 - 4
1) Following are the SAT math scores for an AP
Statistics class of 20 students:
664, 658, 610, 670, 640, 643, 675, 650, 676, 575,
660, 661, 520, 667, 668, 635, 671, 673, 645, 650.
The distribution of scores is
A. symmetric
B. skewed to the left
C. skewed to the right
D. uniform
E. bell shaped
2) Which of the following distributions are more
likely to be skewed to the right than skewed to the
left?
I. Household incomes
II. Home prices
III. Ages of teenage drivers
A. II only
C. I and III
E. I, II, and III
B. I and II
D. II and III
3)A symmetric distribution can’t have which of
the following characteristics?
A. Gaps
B. Outliers
C. A long tail on one side
D. A long tail on both sides
E. More than one mode.
4) Fill in the blank. One advantage of the
________ is that the actual data values are
retained in the graphical summarization of the
data.
A)box plot
B) stem plot
C) pie chart
D) histogram
5) School administrators collect data on
students attending the school. Which of the
following variables is quantitative?
A) grade point average
B) class (freshman, soph., junior, senior)
C) whether the student has taken the SAT
D) whether the student is in AP classes
E) none of these
The Centers for Disease Control lists causes of death for individual states in 2002.
The mortality data for one state is given.
Which of the following displays is/are appropriate for these data? (More than one
display may be appropriate.)
I
II
A) I, II
B) I, II, III
III
C) I
D) I, III
7) Describe the distribution of the age of high school students.
A) The distribution would likely be unimodal and slightly skewed to the right.
The average age of the high school students would be about the same.
The distribution would be slightly skewed to the right, since there are more
seniors.
B) The distribution would likely be bimodal and slightly skewed to the right.
The average age of the freshman and sophomores would be at one mode,
and the average age of the juniors and seniors would be at the other mode.
The distribution would be slightly skewed to the right, since there are more
seniors.
C) The distribution would likely be unimodal and symmetric. The average age
of the high school students would be about the same, with some students
that are older and some that are younger than the average age.
D) The distribution would likely be uniform. Freshmen tend to be about 14
years old; sophomores, 15; juniors, 16; and seniors, 17. Since there is
about an equal number of students in each class, the distribution is uniform.
8) A company held a blood pressure screening clinic for its
employees. The results are summarized in the table below by age
group and blood pressure level.
Under 30
30 – 49
Over 50
Low
27
38
31
Normal
48
90
92
High
23
59
72
Find the marginal distribution of blood pressure level.
A) 20% under 30, 39% between 30-49, 41% over 50
B) 25% low, 92% normal, 47% high
C) 20% low, 48% normal, 32% high
D) 28% low, 49% normal, 23% high
E) 20% low, 39% normal, 41% high
9) Just how accurate are the weather forecasts we hear every
day? The table below compares the daily forecast with a city's
actual weather for a year.
Forecast
Actual Weather
Rain
No Rain
Rain
27
59
No Rain
10
269
What percent of the time was the forecast correct?
A) 76.4 %
B) 73.7 %
D) 7.4 %
E) 18.9 %
C) 81.1 %
10) A local park district is planning to build a recreation center. The park
district conducted a poll to find out the types of physical activities the
local population would be interested in. The poll was based on
telephone responses from 1013 randomly selected adults. The table
shows the percentages of people who expressed interest in various
activities.
What percent of adults polled did not express interest in any of these
activities?
A) 181%
B) 81%
C) 91%
D) 19%
E) The percent cannot be determined from the given
percentages because the categories overlap.
Gender
11) Students in a political science course were asked to describe
their politics as "Liberal", "Moderate", or "Conservative." Here are the
results
Politics
What percent of the females in the class consider themselves to be
"Liberal"?
A) 41.6
B) 42.4
D) 45.2
E) 45.3
C) 50.6
Multiple Choice Review
Chapters 1 - 4
1) B
4) B
7) D
10) E
2) B
5) A
8) C
11) C
3) C
6) B
9) C