Populations and Samples

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

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

• Sample

• Population

• Random Sample

• Quartile

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

• Sample
• Population
• Random Sample
• Quartile

When the sample includes all people part of the population.

• Random Sample

• Representative Sample

• Population

• Statistics

A company is trying to find out if their new product is good/bad for their customers. The company randomly picks 300 customers to have them complete a review. What is the population in this example?

• The company

• Any customer that made a purchase

• The 300 customers picked

• Any person in the whole world

A company is trying to find out if their new product is good/bad for their customers. The company randomly picks 300 customers to have them complete a review. What is the sample in this example?

• The company

• Any customer that has made a purchase

• Any person in the world

• The 300 customers picked

Mr. Fatigante wants to know the average height of a 7th grader at CCMS. He decides to pick 10 boys from the 7th grade basketball team for his survey. Is this representative?

• Yes because he picked 10 boys.

• Yes because he picked 7th graders.

• No because not everyone has a fair chance of being picked.

• No because he should ask the whole basketball team.

Leslie surveyed the 9 youngest students in the elementary school.  Is this sample of the students in the school likely to be representative of all the students in the school?

• yes
• no

Mrs. Trotter wants to see what CCMS thinks of about the new lunches. She selects 50 random students from each grade level. Will this lead to a representative sample?

• Yes

• No

Bob only picks students who last name starts with an A to see if they like the new lockers at his school. Is this a good sample?

• yes

• no