Math 1530-017 Exam 1 With Answer Key - 2009
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11Math 1530-017 Exam 1
Name
February 19, 2009
Student Number E
There are five possible responses to each of the following multiple choice questions. There is only on
“BEST” answer. Be sure to read all possible choices before selecting your answer. You may mark on this
examination. You should use a calculator, but it is not required. However, a calculator manual cannot be
used. Each problem is worth 7 points (for a total of 266 points).
1. Define the word DISTRIBUTION (used in the statistical sense).
(a) Measurements that are collected at regular intervals over a period of time.
(b) The values taken by a variable, among a group of “individuals,” and the frequency with which
it takes those values.
(c) The number of “individuals” falling into some group or category.
(d) A proportion or the ratio of some part relative to the whole.
(e) The scaled axis system used for a graph or plot.
2. Here is a small part of a data set that describes the fuel economy (in miles per gallon) of 2006 model
motor vehicles.
Make and
Vehicle
Transmission Number of City
Highway
model
type
type
cylinders
MPG MPG
. .
.
Audi TT Roadster Two-seater
Manual
4
20
29
Cadillac CTS
Midsize
Automatic
6
18
27
Dodge Ram 1500
Pickup truck Automatic
8
14
19
Ford Focus
Compact
Automatic
4
26
32
. .
.
Which of the following is true of this data?
(a) The individuals of the data set are the mileages.
(b) Transmission type is a quantitative variable.
(c) The Cadillac CTS is an outlier.
(d) The distribution is skewed right.
(e) Mileage is a quantitative variable.
3. In 1995 there were 90,402 deaths from accidents in the United States. Among these were 43,363
deaths from motor vehicle accidents, 10,483 from falls, 9,072 from poisoning, 4,350 from drowning,
and the rest were due to other causes. What type of graph or display would NOT be appropriate to
use in presenting this information?
(a) Bar graph.
(b) Frequency table.
(c) Histogram.
(d) None of the above listed displays is appropriate.
(e) Pie chart.
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