Populations and Samples Intro

_______ is a part of a selected group being surveyed.

• Sample

• Population

• Census

• Quartile

is the entire group of objects or individuals being considered for a survey.

• Sample

• Population

• Subset

• Quartile

What would be the population in this example?

Surveyors in a mall choose shoppers to ask about products they prefer.

• the surveyors

• all shoppers in the mall

• the shoppers who were asked their preferences

What would be the sample in this example?
Surveyors in a mall choose shoppers to ask about products they prefer.

• the surveyors

• all shoppers in the mall

• the shoppers who were asked their preferences

What is the difference between a sample and a population?

• population

• correlation

• sample

• causation

• ideation

• application

• understudy

• sample survey

• experiment

• observational study

What is the difference between a sample and a population?

A ​ (a)   is a set of all items or events which are of interest for some question or experiment.

It is generally the group you are trying to make predictions or learn something about.

For most studies, it is either impossible or impractical to obtain data on an entire population.

This is why you need to use a smaller selection of items.

A ​ (b)   is a selection of observations from a population.

We measure data in a known sample to make a prediction, or inference, about the population.

• population

• correlation

• sample

• causation

• ideation

• application

• understudy

• sample survey

• experiment

• observational study

Match the following

• Statistic

• Population Size

• p

• Population Proportion

• Parameter

• Sample Size

• N

• Sample

• n

• Population

What is the sample and population from this scenario?

• Sample: Number of students that ride the bus

  Population: Inez Middle School students

• Sample: Inez Middle School Students

  Population: Students that ride the bus

• Sample: Inez Middle School Students

  Population: Students that walk and ride cars

• Sample: Students who ride the Bus at Inez Middle School

  Population: Students who ride the bus

What is the sample and population from this scenario? Number of automobile owners in Hawaii that have trucks...

• Sample: People with Trucks

  Population: People of Hawaii

• Sample: People with Trucks

  Population: Automobile owners in Hawaii

• Sample: People of Hawaii

  Population: People with Trucks

• Sample: Automobile owners in Hawaii

  Population: People with Trucks

A mayor wanted to see if the people in his town thought he was doing a good job. Which choice best represents the population of interest?

• The residents of the town

• All of the residents of the state

• 2500 voters

• All of the employed residents in town