AP Stats Ch 11-13 Multiple Choice Practice

Front

What is Simple Random Sampling?

Back

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

Front

What is Response Bias?

Back

A type of bias that occurs when participants provide inaccurate or false responses, often due to social desirability or misunderstanding.

Front

What is Sampling Error?

Back

The error that occurs when a sample does not accurately represent the population, often due to the sample size being too small.

Front

What is an Explanatory Variable?

Back

A variable that is manipulated or categorized to observe its effect on a response variable.

Front

What is a Response Variable?

Back

The outcome variable that is measured in an experiment to see how it is affected by the explanatory variable.

Front

What is the difference between Experiments and Observational Studies?

Back

Experiments involve manipulation of variables to establish cause-and-effect relationships, while observational studies only observe and measure without manipulation.

Front

What is Blinding in Experiments?

Back

A technique used to prevent bias where participants do not know whether they are receiving the treatment or a placebo.

Front

What is Confounding Variable?

Back

A variable that influences both the dependent variable and independent variable, leading to a false association.

Front

What is Stratified Sampling?

Back

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

Front

What is Cluster Sampling?

Back

A sampling technique where entire groups (clusters) are randomly selected, rather than individuals.