Stat vocab

A list of individuals from which we can draw our sample.

• Sampling Frame

• Statistic

• Parameter

• Survey

If the statistical study systematically favors certain outcomes.

• Bias Sampling

• Simple Random Sample

• Systematic Response Sample

• Stratified Random Sample

Chooses itself by responding to a general appeal.

• Voluntary Response Sample

• Convenience Sampling

Selection of whichever individuals are the easiest to reach.

• Voluntary Response Sample

• Convenience Sampling

Individuals from a population chosen in a way that every individual has an equal opportunity to be selected.

• Simple Random Sample (SRS)

• Systematic Random Sample

• Stratified Random Sample

Individuals from a population chosen by starting at a random point and uses a fixed periodic interval.

• Simple Random Sample (SRS)

• Systematic Random Sample

• Stratified Random Sample

Individuals from a population grouped by common attributes or characteristics.

• Simple Random Sample (SRS)

• Systematic Random Sample

• Stratified Random Sample

A number that describes the POPULATION. It is a fixed number, but typically we don't know its value.

• parameter

• statistic

A number that describes the SAMPLE. The value is known once we have taken a sample.

• parameter

• statistic

Involves a researcher collecting data by observing individuals without any influence.

• Observational Study

• Experiment Study

• Treatment

• Sample Survey

• Census