CH 1 -Intro to Stats ( review)

How is a sample related to a​ population?

• A sample is a numerical measure that describes a sample characteristic.

• A sample is a subset of a population.

• A sample is the collection of all​ outcomes, responses,​ measurements, or counts.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Why is a sample used more often than a​ population?

• Inferences cannot be made when using the population.

• It is usually impossible to count the entire population.

• All samples are representative of a​ population, so the population does not need to be used

• Sample statistics are more accurate than the population parameter.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

A parameter is a numerical description of a _________characteristic.

• population

• sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

A statistic is a numerical description of a _________characteristic.

• population

• sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

The two main branches of statistics are

• Descriptive and inferential

• population and sample

• population and parameter

• sample and statistic

A statistic is a measure that describes a population characteristic.

• true

• false

It is impossible for the Census Bureau to obtain all the census data about the population of the United States.

• true

• false

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

A population is the collection of some​ outcomes, responses,​ measurements, or counts that are of interest.

• false

• true

A sample statistic will not change from sample to sample.

• false

• true

Answer explanation

A sample statistic can change from sample to sample.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Determine whether the data set is a population or a sample.

The number of floors in each home in a town

• sample

• population

Answer explanation

it is a collection of the number of floors for ALL homes in the town