7-1 Populations and Samples

Front

What is a population in statistics?

Back

A population is the entire group of individuals or items that we want to study or gather information about.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is a sample in statistics?

Back

A sample is a subset of the population selected for the purpose of conducting a survey or study.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

Why is it important to have a representative sample?

Back

A representative sample accurately reflects the characteristics of the population, allowing for valid conclusions to be drawn from the survey results.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What does random sampling mean?

Back

Random sampling is a technique where each member of the population has an equal chance of being selected for the sample.

Tags

CCSS.HSS.IC.B.3

Front

What is the purpose of conducting a survey?

Back

The purpose of conducting a survey is to gather information or opinions from a group of people about a specific topic.

Front

What is sampling bias?

Back

Sampling bias occurs when the sample selected does not accurately represent the population, leading to skewed results.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is stratified sampling?

Back

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

Tags

CCSS.HSS.IC.B.3

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical values that can be measured.

Front

What is a survey question?

Back

A survey question is a question posed to respondents to gather their opinions, preferences, or behaviors.

Front

What is the significance of sample size in surveys?

Back

The sample size affects the reliability and validity of the survey results; larger samples generally provide more accurate estimates.

Tags

CCSS.HSS.IC.B.3