1. Define a variable.

2. What is the purpose of operationalization?

3. In a survey questionnaire one question asks "On the average day, how many hours

do you spend on Facebook?" Identify the type of variable that will be generated.

4. In the Variable View of SPSS Data Editor:

i) What do rows represent?

ii) What do columns represent?

5. Missing values may result from different situations. Name at least two situations.

6. Differentiate between Univariate and Bivariate analysis.

7. State one advantage of median over mean as measure of central tendency.

8. Consider the following data on student grades:

Student Grades (Raw data): B, A, A, C, A

Student grades	frequency	Relative frequency

a) Complete the frequency distribution table above

b) Calculate the relative frequency

9. A newspaper readership survey carried out in Australia. The survey results of 200

readers were recorded and are given below in summarized form.

Newspaper	Frequency	Percentage
The Australia	36	18
The Age	20	10
Herald Sun	28	14
The Daily Telegraph	56	28
The West Australia	42	21`
The Sydney Morning Herald	18	9
	200	100

a) Identify the type of variable it is and name appropriate graphical descriptive

technique to present this information.

b) Draw the appropriate graph to present the information.

c) Make one statement from you graph

10. Consider this small population with mean =10:

Population A

8

9

10

11

12

a) Calculate the Variance

b) Calculate the standard deviation

c) Interpret the standard deviation at any conventional level

11. Consider the information provided in the table below.

Size of the household	Number of households
1 member	141
2 members	250
3 members	569
4 members	905
5 members	671
6 or more members	347
Total	2883

a) Calculate the average household size.

b) Calculate the weighted average household size

1. A survey was conducted to find out the attitude of males and females towards sexual

equality. A total of 20 people were surveyed and amongst which 50% were male.

Further, it was revealed that 20% of the women don't favor sexual equality and 60%

of the men favor sexual equality.

a) Identify the two categorical variables in this survey.

b) Use the information provided above and draw a cross-classification table (Bivariate

table) for the two variables you identified.

c) What can you conclude from the table?