LECTURE 1: INTRODUCTION

Which of the following statements is true about descriptive statistics?

• It is used to make inferences about a population based on a sample.

• It is used to summarize and describe data in a meaningful way.

• It is used to test hypotheses about the population parameters.

• It is used to estimate population parameters.

Which of the following statements is true about inferential statistics?

• It is used to make inferences about a population based on a sample.

• It is used to summarize and describe data in a meaningful way.

• It is used to test hypotheses about the population parameters.

• It is used to estimate population parameters.

Which of the following is an example of a qualitative variable?

• Age

• Height

• Income

• Gender

Which of the following is an example of a continuous variable?

• Employed workers

• Subjects enrolled per semester

• Kids' heights

• Cars owned

MATCH the level of measurement with the appropriate example:

• Converting from one currency to another

• Ordinal

• Income level

• Ratio

• Race or Ethnicity

• Interval

• The temperature in Celcius

• Nominal

The level of measurement for a likert scale is ...................................................​

Match the following levels of measurement with the examples:

• GPA/CGPA

• nominal

• number of siblings

• interval

• blood type

• ratio

Drag each variable type to the correct category:

NOMINAL VARIABLE

​ ​

c

d

e

Weight

Gender

Religion

Height

Race

Drag each variable type to the correct ORDINAL CATEGORY

b

c

d

Types of fruits

Hair colour

Likert scale

Levels of education

Rank in a competition

Drag each variable type to the

INTERVAL CATEGORY

b

c

d

Time of day

Temperature in Celcius

levels of education

IQ scores

numbers of devices owned