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Statistics and Variables Quiz

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Questions and Answers

What is a qualitative variable?

Data that expresses a categorical attribute (correct)

Data that can be counted

Data that can be measured

Data that answers questions like 'how much'

Which type of data can be measured and is uncountably infinite?

Qualitative data

Population data

Continuous data (correct)

Discrete data

What does a population in statistics refer to?

A subgroup of a universe

The set of all possible values of a variable (correct)

A rule that assigns numerical values to outcomes

The collection of entities from whom data is collected

What is the main concern of probability?

Predicting chances and occurrence of events (B) Signup and view all the answers

Which term describes an outcome of an event with a numerical value?

Random variable (A) Signup and view all the answers

What is the role of probability distribution in statistics?

Assigning numerical values to outcomes (A) Signup and view all the answers

Which term refers to the collection or set of units or entities from which data is obtained?

Universe (B) Signup and view all the answers

If a variable can take on only a finite or countably infinite set of values, it is classified as which type of quantitative variable?

Discrete (D) Signup and view all the answers

Which term describes a characteristic or attribute that can be observed or measured for every unit in the universe?

Variable (C) Signup and view all the answers

If a survey is conducted on a subset of a population, what term describes this subset?

Sample (D) Signup and view all the answers

Which term refers to a rule that assigns numerical values (random variables) to the outcomes of an experiment?

Probability distribution (D) Signup and view all the answers

Which type of variable represents categorical attributes, such as gender, religion, or educational attainment?

Qualitative (C) Signup and view all the answers