9-1 Populations and Samples

A (a)   is a part of a group being surveyed.

• sample
• population
• random sample
• quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

CCSS.7.SP.B.4

A ​ (a)   is the entire group of objects or individuals considered for a survey.

• population
• sample
• random sample
• quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

The manager of a book store surveys people who buy mystery novels to see if the store should expand its hours.  What is the population?

• People who visit the bookstore.
• People who buy mystery novels.
• Residents of the town
• People who like to read.

Tags

CCSS.7.SP.A.1

A student surveys mathematics teachers to get their opinion on teaching.  What is the sample?

• All teachers in the world.
• All teachers within the school.
• All mathematics  teachers in the school.
• All teachers except mathematics teachers.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A computer manufacturer surveys its customers who purchased laptop computers to ask what software the company should include with its computer.  Identify the population.

• Customers who purchased laptop computers.
• Customers of the store.
• Customers who are interested in software.
• Computer manufacturers

Tags

CCSS.7.SP.A.1

A music store gives comment cards to all members of its Jazz Club to find out about satisfaction with the club's features.  Identify the sample.

• People who play instruments.
• All music store customers except Jazz Club members.
• All music store customers
• Jazz Club members

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A new cable TV station wants to study the viewing habits of households.  The station surveys every household that purchased a new TV within the last 2 years in New York.  Is this random sampling?

• Yes
• No

Tags

CCSS.HSS.IC.B.3

A U.S. senator from Maine wants to find out the opinion of the voters in his state on issues concerning education.  The office of the senator sends out a survey to a random sample of registered voters in Maine.  Is this random sampling?

• Yes
• No

Tags

CCSS.HSS.IC.B.3

A U.S. senator from Maine wants to find out the opinion of the voters in his state on issues concerning education.  The office of the senator passes out surveys on ten street corners in the five major cities in the state of Maine.  Is this random?

• Yes
• No

Tags

CCSS.HSS.IC.B.3

True or False: all samples lead to a good prediction about an entire population.

• True
• False

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2