A local Polling chapter is interested in the proportion of people who voted in the last election. Identify
the statistic.
1.0/ 1.0 Points
•
A.
the proportion of the sample who voted in the last election
•
B.
all people (maybe in a certain geographic area, such as everyone in the state)
•
C.
a group of the people
•
Question 8 of 20
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Question 9 of 20
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D.
the proportion of all people who voted in the last election

Answer Key:A

An APU instructor is interested in the mean number of days an APU statistic students are absent from
class during a quarter. X = number of days an APU statistic students are absent from class during a
quarter. In this case, X is an example of :
Question 10 of 20
Part 3 of 5 - Section: Frequency, Frequency Tables and Measurement
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Forbes magazine published data on the best small firms in 2012. These were firms which had been
publicly traded for at least a year, have a stock price of at least $5 per share, and have reported annual
revenue between $5 million and $1 billion. The table below shows the ages of the chief executive
officers for the first 73 ranked firms.
Age Frequency Relative Frequency Cumulative Relative Frequency
40-44
4
45-49
3
50-54
15
55-59
20
60-64
21
65-69
8
70-74
2
Answer the following questions:
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What percentage of CEOs are 59 years or younger? Round your answer to the nearest tenth.
Question 11 of 20
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What is the relative frequency of ages 65 to 69? Round your answer to 4 decimal places
0.1096
What is the cumulative frequency for CEOs
over 55 years in age?
51

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80 part-time students were asked how many courses they were taking this term. The (incomplete)
results are shown below:
Part-time Student Course Loads
# of
Courses
Frequency
Relative
Frequency
Cumulative Relative
Frequency
1
36
2
24
0.30
3
20
Answer the following two questions:
What percent of students take exactly three courses?
Question 12 of 20

What percent of students take one or three courses?

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Part 4 of 5 -
Section:
Variation and
Rounding
Off
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