EXERCISE 1. WRITE THE LETTERS OF THE CORRECT ANSWERS IN THE SPACES PROVIDED.
Questions A,B,C,D Questions A,B,C,D
1. A grouping of data into classes giving the number of observations in each class is called a(an)___
a) Bar chart b) frequency
c) pie chart. d) cumulative frequency
2. The distance between consecutive lower class limits is called the____________
a) class interval. b) frequency
d) Class frequency
3. The class midpoint is ____________
a) equal to the
b) equal to the
C) equal to the
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
d) cumulative frequency
5. A bar chart is used most often when____________
a) you want to show
compared to total
b) you want to
C. you want to
along certain time
c) you want to show
frequencies by class
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
c. the class
divided by the
total number of
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
b. the lower class
c. the interval
d. the upper class
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) ¼ 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.
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(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
The following shows the number of students enrolled in each major:
Major Number of Students
(a) Develop a relative frequency distribution
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(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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