Intro to Statistics

Front

What is a population in statistics?

Back

A population is the entire group of individuals or instances about whom we hope to learn.

Front

What is a sample in statistics?

Back

A sample is a subset of the population that is used to represent the entire group.

Front

What is categorical data?

Back

Categorical data represents characteristics or qualities that can be divided into groups, such as names or labels.

Front

What is numerical data?

Back

Numerical data represents quantities and can be measured, such as height, weight, or age.

Front

What is a parameter in statistics?

Back

A parameter is a numerical value that summarizes a characteristic of a population.

Front

What is a statistic in statistics?

Back

A statistic is a numerical value that summarizes a characteristic of a sample.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample includes only a part of that group.

Front

What is the purpose of a survey in statistics?

Back

A survey is used to collect data from a sample to make inferences about the population.

Front

What is bias in sampling?

Back

Bias in sampling occurs when certain members of the population are more likely to be selected than others, leading to an inaccurate representation.

Front

What is random sampling?

Back

Random sampling is a technique where each member of the population has an equal chance of being selected.