Geometry Lab: Populations and Samples

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 selected for observation and analysis.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample consists of a portion of that group.

Front

What is a random sample?

Back

A random sample is a subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.

Front

Why is it important to have a representative sample?

Back

A representative sample accurately reflects the characteristics of the population, allowing for valid conclusions.

Front

What is bias in sampling?

Back

Bias occurs when certain members of the population are more likely to be selected than others, leading to an unrepresentative sample.

Front

What is a convenience sample?

Back

A convenience sample is a non-random sample that is taken from a group that is easy to reach.

Front

What is stratified sampling?

Back

Stratified sampling involves dividing the population into subgroups and taking a sample from each subgroup.

Front

What is the purpose of conducting a survey?

Back

The purpose of conducting a survey is to gather information and opinions from a group of people.

Front

What is the mean in statistics?

Back

The mean is the average of a set of numbers, calculated by dividing the sum of the values by the number of values.