Two hundred members of a fitness center were surveyed

8. Two hundred members of a fitness center were surveyed. One survey item stated,
“The facilities are always clean.” The members’ responses to the item are
summarized below. Fill in the missing value for the frequency distribution.
Opinion Frequency
Strongly Agree 63
Agree 92
Disagree
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Strongly Disagree 15
No Opinion 14
9. Fill in the missing value for the following relative frequency distribution.
Opinion Relative Frequency
Strongly Agree 0.315
Agree 0.460
Disagree
Strongly Disagree 0.075
No Opinion 0.070
10. Fill in the missing value for the following percent frequency distribution.
Annual Salaries Percent Frequency
Under $30,000 10
$30,000 – 49,999 35
$50,000 – 69,999 40
$70,000 – 89,999
$90,000 and over 5
11. The following is a summary of the number of hours spent per day watching
television for a sample of 100 people. What is wrong with the frequency
distribution?
Hours/Day Frequency
0  1
10
1  3 45
3  5
20
5  7 20
7  9
5
12. A summary of the results of a job satisfaction survey follows. What is wrong with
the relative frequency distribution?

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Fair .45
Good .25
Excellent .30
13. The frequency distribution below was constructed from data collected from a
group of 25 students.
Height in Inches Frequency
58  63
64  69
70  75
76  81
82  87
88  93
94  99
a. Construct a relative frequency distribution.
b. Construct a cumulative frequency distribution.
c. Construct a cumulative relative frequency distribution.
3
5
2
6
4
3
2
ANSWERS:
a. b. c.
Height (inches) Frequency
Relative
Frequency
Cumulative
Frequency
Cumulative
Relative Frequency
58  63
3 0.12 3 0.12
64  69
5 0.20 8 0.32
70  75
2 0.08 10 0.40
76  81
6 0.24 16 0.64
82  87
4 0.16 20 0.80
88  93
3 0.12 23 0.92
94  99
2 0.08 25 1.00
1.00
14. The frequency distribution below was constructed from data collected on the
quarts of soft drinks consumed per week by 20 students.
Quarts of Soft Drink Frequency
0  3
4
4  7
5
8  11
6
12  15
3
16  19
2
a. Construct a relative frequency distribution.
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b. Construct a cumulative frequency distribution.
c. Construct a cumulative relative frequency distribution.
ANSWERS:
a. b. c.
Quarts of
Soft Drinks
Relative
Frequency
Cumulative
Frequency
Cumulative
Relative Frequency
0  3
0.20 4 0.20
4  7
0.25 9 0.45
8  11
0.30 15 0.75
12  15
0.15 18 0.90
16  19
0.10 20 1.00
Total 1.00