Statistics Final Review

Front

What is a response variable?

Back

The variable we expect to change in response to the explanatory variable.

Front

What is a stratified random sample?

Back

A type of sample that divides the population into groups with similar traits that do not overlap.

Front

Which dot plot has the greatest variability?

Back

Dot plot B has the greatest variability.

Front

What is an explanatory variable?

Back

The explanatory variable is used to explain or predict the value of the response variable.

Front

How do you determine the median of a distribution?

Back

The median is the middle value when the data is ordered from least to greatest.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample is a subset of the population.

Front

What is a simple random sample?

Back

A sample where every member of the population has an equal chance of being selected.

Front

What does variability in data refer to?

Back

Variability refers to how spread out or how much the data points differ from each other.

Front

What is the purpose of using a control group in an experiment?

Back

A control group is used as a benchmark to compare the effects of the treatment.

Front

What is a normal distribution?

Back

A normal distribution is a bell-shaped distribution where most of the data points cluster around the mean.