Solutions to Homework 2
Problem 2.9
a. and b. The frequency and percent frequency distributions are in the table below.
Became CEO
Freq.
Relative Freq.
Percent Freq.
Inherited
8
0.308
30.8%
Built
14
0.538
53.8%
Hired
4
0.154
15.4%
c. The bar graph:
d. 30.8% of the CEOs became the CEO because they inherited the business. The primary
reason a person became the CEO was because he or she built the business.
Problem 2.19
a. and b. The frequency and relative frequency distributions are in the table below.
Minutes
Freq.
Relative Freq.
15
12
0.60
610
3
0.15
1115
2
0.10
1620
1
0.05
2125
1
0.05
2630
0
0.00
3135
1
0.05
1
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View Full Documentc. and d. The cumulative frequency and cumulative relative frequency distributions are in the
table below.
Minutes
Cumulative Freq.
Cumulative Relative Freq.
15
12
0.60
610
15
0.75
1115
17
0.85
1620
18
0.90
2125
19
0.95
2630
19
0.95
3135
20
1
e. The ogive:
f. 60% of workers spend 5 minutes or less on unsolicited email and spam. 25% of oﬃce
workers spend more than 10 minutes on unsolicited email and spam.
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 Spring '10
 Jager,AbigailL
 Frequency distribution, Histogram, frequency distributions

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