Stats Unit 1 Flashcard (1.1, 4.1-4.4)

Front

What is a representative sample?

Back

A representative sample accurately reflects the characteristics of the population from which it is drawn, ensuring that the sample mirrors the diversity of the entire group.

Front

What is the least likely method to produce a representative sample?

Back

Choosing every tenth student from a randomly chosen home basketball game is least likely to produce a representative sample because it may not include students who do not attend the game.

Front

What is a survey?

Back

A survey is a method of data collection that involves asking individuals questions to gather information about their opinions, behaviors, or characteristics.

Front

What is the population of interest in a study?

Back

The population of interest is the entire group of individuals that a researcher wants to draw conclusions about.

Front

What is categorical data?

Back

Categorical data represents characteristics or qualities that can be divided into distinct categories, such as favorite subjects.

Front

What is quantitative data?

Back

Quantitative data represents numerical values that can be measured and expressed mathematically, such as the number of glasses owned.

Front

What is an experiment in data collection?

Back

An experiment is a method of data collection that involves manipulating one or more variables to observe the effect on another variable.

Front

What is observation in data collection?

Back

Observation is a method of data collection that involves watching and recording behaviors or events without interference.

Front

What is the difference between a sample and a population?

Back

A sample is a subset of individuals selected from a larger population, used to make inferences about the population.

Front

What is stratified sampling?

Back

Stratified sampling involves dividing the population into subgroups (strata) and randomly selecting samples from each stratum to ensure representation.