Samples and Populations

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample
• Population
• Representative Sample

• Quartile

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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

• True
• False

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A school surveys all 7th grade boys to determine what to sell in the school store.  This sample is _________.

• Unrepresentative Sample

• Random Sample

• Representative Sample

• Population

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A school survey asked 50 girls to identify their favorite items on the school cafeteria menu. This sample is ________________ of the total school population.

• Unrepresentative

• Representative

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A student wants to know which type of pizza the students at his high school prefer. Which option would give a representative sample:

• Asking all the students in the hot lunch line.
• Asking 10 random students from each homeroom.
• Asking every other student who gets off a school bus.
• Asking all the 10th graders.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

The choir director in a high school wants to know how the students in the school feel about singing. If the director selects 100 girls and 100 boys to complete a survey, which method will result in an unrepresentative sample?

• The students will be selected from the choir
• The students will be selected randomly throughout the school
• The students will be randomly selected on Wednesday afternoon before all students attend the choir concert

• The choir director will select five students from each of the forty homerooms in the school

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

The TV station wants to get the opinion of viewers on the look of a new game-show set.  The station's staff calls random people in the phone book.  Is this representative or unrepresentative?

• Unrepresentative

• Representative

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

I drew 10 names from a hat containing the names of every student that I teach, what type of sample have I taken?

• A representative sample.

• An unrepresentative sample.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A company makes DVDs and randomly selects 25 from 1500 to test them to see if they work.

• Unrepresentative

• Representative

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1