This document contains a survey of variables from 30 households including age, sex, weight, body temperature, social status, and family size. It provides multiple choice and matching questions to test understanding of qualitative vs. quantitative variables, and appropriate scales and graphs to display different types of data. It also includes a frequency distribution of household head weights and questions to complete and graph the distribution.

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Hawassa University, Wondo Genet College of Forestry & Natural Resources
School of Natural Resource & Environmental studies
Natural Resource Economics & Policy Program
Statistics for Economists (NrEp 2071) Test 1 (15%)
Date: December 10, 2014 By Meselu Tegenie Mellaku
Time Allowed: 60 Minutes
Name: __________________________________ _____ID. No: _____________
A survey were made on variables, Age, Sex, Weight, Body Temperature, Social status and
Family size on 30 Household heads. Social status of Household heads assumes the values Rich,
Medium and Poor whereas Age is measured to the nearest integer.
Instruction I: Basedon the given information answer the following questions
Fill the blank space with the correct answer
7. Which of the variables in the survey are:
A. Qualitative?_________________________________________(1points)
B. Quantitative?________________________________________(1 points)
C. Discrete? _________________________________________(1 point)
D. Continuous?_________________________________________(1 points)
8. Which of the variables in the survey are appropriate to measure their values using:
A. Nominal Scale?________________________________________(1 point)
B. Ordinal Scale? _________________________________________(1 point)
C. Ratio Scale??___________________________________________(1 point)
D. Interval Scale?__________________________________________(1 point)

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Instruction II:
Match the Variables in Column B with Appropriate Graph/Diagram to Display the Data in
Column A Multiple and RepeatedAnswer is Possible (Assume that data collected on
variables mentioned above is organized using appropriate frequency distribution) (4 points)
A B
____9. Histogram A. Family Size
____10. Bar Chart B. Body Temperature
____11. Pie Chart C. Wealth Status
____12. Ordered Array D. Sex
Instruction III:
Weight (in Kg) record of household heads surveyed is as shown in the table below.
1. Complete the frequency distribution by finding class boundaries ,class marks, relative
frequency, % relative frequency, and less than cumulative frequency of each class
(5 points)
Class
Boundary
Class
Limit
Class
Mark
Frequency Relative
Frequency
%
Relative
Frequency
Less than
Cumulative
Frequency
50-54 3
55-59 4
60-64 5
65-69 6
70-74 5
75-79 4
80-84 3
n=30
2. The class width of the grouped frequency distribution is____________________(1point)

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3. Draw the histogram, the relative frequency polygon and the ogive of the above grouped
frequency distribution in the squared paper given next page

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_______________________________________End__________________________________