Stats Unit 3 and 4 Review

Front

What is a simple random sample?

Back

A sample where every individual has an equal chance of being selected, ensuring that the sample is representative of the population.

Front

What is the definition of sample size?

Back

The number of individuals or observations included in a sample.

Front

What does the slope of a line represent in a linear equation?

Back

The rate of change of the dependent variable with respect to the independent variable.

Front

What is the difference between sample size and population size?

Back

Sample size refers to the number of observations in a sample, while population size refers to the total number of individuals in the entire group being studied.

Front

What is an observational study?

Back

A study that observes individuals and measures variables of interest without attempting to influence the responses.

Front

What is a parameter in statistics?

Back

A numerical value that summarizes a characteristic of a population.

Front

What is a statistic in statistics?

Back

A numerical value that summarizes a characteristic of a sample.

Front

What is a convenience sample?

Back

A sample that is taken from a group that is easily accessible, which may not be representative of the population.

Front

What is a stratified sample?

Back

A sampling method where the population is divided into subgroups (strata) and random samples are taken from each stratum.

Front

What is a cluster sample?

Back

A sampling method where the population is divided into clusters, and entire clusters are randomly selected.