7.SP.1 - Population vs. Sample & Biased vs. Unbiased

Biased or Unbiased?

John wants to find out what the favorite soda flavor is at Menifee County. He decides to ask all the students in Mr. Goldsmith's class as a sample group.

• Biased

• Unbiased

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Biased or Unbiased?

Reign wants to determine the most popular brand of cereal in all of Kentucky. So he polls all the houses on his street to get a sample.

• Biased

• Unbiased

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Biased or Unbiased?

Audi wants to find out how students get to school at Menifee Elementary so she places the names of all students into a fish bowl and pulls out 50 so she can survey them.

• Biased

• Unbiased

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Biased or Unbiased?

Spencer wants to determine who the most popular Twitch.tv streamer in the United States is. So he hacks the U.S. Census and includes the question in the 2020 census form that goes to every household in America.

• Biased

• Unbiased

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

What is the difference between a sample and a population?

• Populations only consider a portion of the sample being studied.

• Samples only consider a portion of the population being studied.

• Populations do not always represent the entire group of people in question.

• Samples are generally much larger than populations.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

What are two ways that we can help maximize representation and minimize bias within our samples? (choose 2 answers)

• By selecting survey participants who are easy to contact.

• By selecting survey participants at random.

• By using data collected from participants who chose to respond to a survey voluntarily.

• By ensuring that everyone within a population has an equal chance of being chosen to participate in a survey.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A survey was distributed to determine food preferences for Middle School students. Which sample is most the representative for this survey?

• A group of High School students during a PE class.

• A group of parents of local Middle School students.

• 10 Elementary School students from each of the 5 local Elementary Schools.

• 20 randomly selected students from 6th, 7th, and 8th grade from each local Middle School.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Your school newspaper is conducting a survey to find out which school sports team is most popular.  How would it most likely get a random sample from the student population?

• By asking every fifth person entering the basketball game
• By asking 10 students from every homeroom
• By asking the parents
• By asking the students on the pep club

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Which population would provide the most random sample to determine who the students will select for student body president?

• students from band
• Students on the athletic team
• Five students from every class in the sixth grade
• five students from every class in sixth, seventh, and eighth grade

Tags

CCSS.6.SP.A.1

Your teacher needs 5 students to help set up for the dance.  Which would represent a random method for her to choose students.  

• Select the 5 students with the highest GPA
• Place the names of the students on the BETA club in a hat and draw out 5 names
• ask the teachers to vote
• Place the names of all students in the school in a hat and draw out 5 names

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2