Types of Statistical Studies

Front

What is a biased sample?

Back

A biased sample is one that does not accurately represent the population from which it is drawn, leading to skewed results.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is an unbiased sample?

Back

An unbiased sample is one that accurately represents the population, allowing for valid conclusions to be drawn.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is an experiment in statistical studies?

Back

An experiment is a research method where the researcher manipulates one or more variables to observe the effect on another variable.

Tags

CCSS.HSS.IC.B.3

Front

What is an observational study?

Back

An observational study is a research method where the researcher observes and records behavior without manipulating any variables.

Tags

CCSS.HSS.IC.B.3

Front

What is a sample survey?

Back

A sample survey is a method of collecting data by asking a subset of individuals from a larger population.

Tags

CCSS.HSS.IC.B.3

Front

What is a census in statistical studies?

Back

A census is a method of collecting data from every individual in the population.

Tags

CCSS.6.SP.B.5B

Front

What is the purpose of random assignment in experiments?

Back

Random assignment helps ensure that each participant has an equal chance of being assigned to any group, reducing bias.

Tags

CCSS.HSS.IC.B.3

Front

What is the difference between an experiment and an observational study?

Back

An experiment involves manipulation of variables, while an observational study involves only observation without manipulation.

Tags

CCSS.HSS.IC.B.3

Front

What is the significance of control groups in experiments?

Back

Control groups are used to compare against experimental groups to determine the effect of the treatment.

Tags

CCSS.HSS.IC.B.3

Front

What is a variable in the context of statistical studies?

Back

A variable is any characteristic, number, or quantity that can be measured or counted.

Tags

CCSS.6.SP.B.5B