Identifying Sample or Population

The part of the population being studied

• population

• sample

• random

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

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

• Sample

• Population

• Random Sample

• Quartile

As part of a 6th grade statistics project, the teacher brings a candy jar full of gumballs (red & green). The assignment is to estimate the proportion of red gumballs in the jar. Suppose one of the students draws 25 gumballs from the jar: 8 are red, 17 are green. What is the SAMPLE?

• 25 gumballs drawn

• all gumballs in the jar

• the students

• the 17 green gumballs

Which choice best represents a sample?

• selection of voters over age 50.

• selection of male voters.

• selection of voters of different ages.

• All of these.

Identify the Sample:
A restaurant wants to know if customers buy dessert when they eat out. As people leave the restaurant one evening, 20 people are surveyed at random. Eight people say they usually order dessert when they eat out. The restaurant concluded that most customers do not order dessert.

• 20 customers

• All customers

• 8 customers

• Dessert

Population or Sample?

A survey of 1353 American households found that 18% of the households own a computer.

• Population

• Sample

Population or Sample?

A recent survey of 2625 elementary school children found that 28% of the children could be classified obese.

• Population

• Sample

Population or Sample? The average weight of every person entering the mall within 3 hour period was 146 lb.

• Population

• Sample