Statistics Quiz

Which of the following best defines Statistics?

• A branch of mathematics that solves equations

• A branch of science dealing with the collection, presentation, analysis, and interpretation of quantitative data

• A way to store numbers

• A branch of language studies

Which of the following is NOT part of the scope of statistics?

• Data collection

• Data presentation

• Data interpretation

• Making art

Which of the following terms refers to information gathered for analysis?

• Data

• Variable

• Sample

• Population

A random variable is:

• A number that never changes

• A variable that takes on different values depending on outcomes

• Always qualitative

• Always zero

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

• Height

• Weight

• Gender

• Age

Which of the following is a quantitative variable?

• Marital status

• Religion

• Temperature

• Nationality

A discrete variable is best described as:

• Taking on continuous values

• Having countable values

• Always qualitative

• Always non-numerical

A continuous variable:

• Can take on any value within a range

• Can only take whole numbers

• Refers to categories

• Cannot be measured

Descriptive statistics mainly involves:

• Making predictions about a population

• Collecting and summarizing data

• Testing theories

• Applying statistical laws

Inferential statistics is used to:

• Describe a sample only

• Infer conclusions about a population from a sample

• Draw tables

• Create graphs