Sampling and Bias

Identify the sampling method used in this situation. 

Select three JV and three Varsity basketball players to receive ice cream by putting the JV names in one hat and all the Varsity names in a different hat and picking out three names from each hat. 

• Simple Random

• Systematic

• Stratified

• Cluster

Tags

CCSS.HSS.IC.B.3

Identify the sampling method used in this situation. 

A video store wants to know what PS3 games are most popular in the state. It surveys people that come into its store.

• Simple Random

• Systematic

• Stratified

• Convenience

Tags

CCSS.HSS.IC.B.3

Identify the sampling method used in this situation. 

A news station asks viewers to share their opinion on a news story. 

• Simple Random

• Voluntary

• Systematic

• Convenience

Tags

CCSS.HSS.IC.B.3

Students at North River High School are assigned to home rooms with 25 students each. You randomly select 4 homerooms and gather data from each of the 100 students in these classes.

What type of sampling method was used?

• Simple Random

• Cluster

• Stratefied

• Systematic

Tags

CCSS.HSS.IC.B.3

A researcher wants to determine how to help North River High School students who struggle in school. The researcher hires you as his assistant and wants you to retrieve data from 100 students at North River High School. 

What is the sample?

• All high school students in the district

• All high school students attending North River High

• Students attending North River High who struggle in school

• 100 students attending North River High from which data is retrieved

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A researcher wants to determine how to help North River High School students who struggle in school. The researcher hires you as his assistant and wants you to retrieve data from 100 students at North River High School. 

What is the population of interest?

• All high school students in the school district

• All high school students attending North River High

• Students attending North River High who struggle in school

• 100 students attending North River High from which data is retrieved

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

For a school project, three students need to produce a sample of students at their school. Which of the following methods leads to a random sample?

• Numbering all the students and produce the sample from a random list of numbers

• Calling for volunteers at the school assembly

• Calling for volunteers via social media

• Asking each of their friends to name three further friend2

Tags

CCSS.HSS.IC.B.3

Dylan wants to know how the students at his school rate the cafeteria.  He surveyed his school's basketball team to rate the school cafeteria. Is this a biased sample of the school's population?

• Yes, because it is a convenience survey
• No, the basketball team has the smartest students
• Yes, because it's voluntary survey
• No, he should have asked the football team

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

You want to know what is the favorite sport of 10th graders at RHS. You ask 10th graders who want to participate to go to the office during to complete a survey. This is...

• Biased, because it is a convenience sample

• Unbiased

• Biased because it is an interval sample

• Biased because it is a volunteer sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Volunteers for a politician's campaign called 100 randomly selected citizens to conduct a survey. Only 50 people agreed to answer the survey questions, and most of them were supporters of the candidate. This is an example of...

• Voluntary Response Bias

• Nonresponse Bias

• Undercoverage Bias

Tags

CCSS.HSS.IC.B.3