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EXERCISE 1. WRITE THE LETTERS OF THE CORRECT ANSWERS IN THE SPACES PROVIDED.
Questions A,B,C,D Questions A,B,C,D
1 6
2 7
3 8
4 9
5 10
1. A grouping of data into classes giving the number of observations in each class is called a(an)___
a) Bar chart b) frequency
distribution.
c) pie chart. d) cumulative frequency
distribution.
2. The distance between consecutive lower class limits is called the____________
a) class interval. b) frequency
distribution.
C) class
midpoint.
d) Class frequency
3. The class midpoint is ____________
a) equal to the
number of
observations
b) equal to the
cumulative
distribution
C) equal to the
class interval.
a) d) found by adding the
lower class limits of two
consecutive classes and
dividing by 2.
4. The number of observations in a particular class is called the___________
a) class interval. b)class frequency. c) frequency
distribution.
d) cumulative frequency
distribution
5. A bar chart is used most often when____________
a) you want to show
frequencies as
compared to total
observations.
b) you want to
display
frequencies by
category.
C. you want to
organize data
along certain time
interval.
c) you want to show
frequencies by class
intervals.
6. In a relative frequency distribution___________________
a) the class frequencies are
divided by 100.
b)the data are
related to each other
rather than mutually
exclusive.
c. the class
frequency is
divided by the
total number of
observations.
d. the frequencies are
added together to give a
relative set of numbers.
7.Cumulative frequency polygons are constructed from line segments connecting___________________
a. the upper class limits
and corresponding
cumulative frequencies.
b. the lower class
limits and
corresponding
cumulative
frequencies.
c. the interval
midpoints and
corresponding
cumulative frequencies.
d. the upper class
limits and
corresponding
frequencies.
8. A graphic representation of a frequency distribution constructed by connecting the class
midpoints with lines is called a ___________
a. histogram b. line chart c. pie chart d. frequency polygon
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Use the graph below for questions 9 and10:
9. Approximately what percent of the investments
are in coins?
a)8% b)9% c)10%
10.Coins and bonds together make up about what part of the investment?
a) 1/3 b) ΒΌ c) 1/5
Exercise 2. A Student has completed 20 Courses from a College of Business
Administration. Her Grades in the 20 courses are shown below.
A B A B C
C C B B B
B A B B B
C B C B A
(a) Develop a frequency distribution for her grades.
a) Develop a percentage frequency distribution for her grades.
Page 3 of 4
(Use Exercise 2 data).
(c) Construct a Bar graph for her grades.
Exercise 3. There were 850 students in the school of business administration in a
university. The school offers four majors, namely: Accounting, Finance, Management and
Marketing.
The following shows the number of students enrolled in each major:
Major Number of Students
Accounting 290
Finance 160
Management 320
Marketing 80
(a) Develop a relative frequency distribution
Page 4 of 4
(b) (Use Exercise 3 data) Develop a percentage frequency distribution
(Use Exercise 3 data)
c). Construct a Line graph for the number of students enrolled for each major.
d). Construct a PIE graph for the number of students enrolled for each major.

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1. B

2. A...