Random or Biased Sample

Marissa wants to learn what the most popular board game in the United States is, so she creates a poll and shares it on Twitter.

• Biased sample

• Random sample

Biased or Random?

Chloe and Danna want to determine the favorite subject of all students in the middle school. So they place every middle school student's name in a bucket and choose 30 to poll.

• Biased sample

• Random sample

Joey wants to determine the favorite candy among all 7th graders. So he asks all the people who sit in his row in Math class.

• Biased sample

• Random sample

Peyton wants to find out what the most popular pet in all of Churchill so she puts every student's name into a bucket and polls 30 students.

• Biased sample

• Random sample

You want to survey the students in your school about their exercise habits. At lunchtime you stand by a vending machine. You survey every student who buys something from the vending machine.

• Biased sample

• Random sample

Teliciah wants to determine the most popular brand of cereal in all of California. So she polls all the houses on her street to get a sample.

• Biased sample

• Random sample

Chris B. and Kris S. want to determine the most popular Basketball player in all of Sacramento so they poll everyone at lunch.

• Biased sample

• Random sample

Biased or Random?

Mrs. Locke wants to determine who the best teacher in all of Menifee County is, so he asks every 7th grader who their favorite teacher is.

• Biased

• Random

A high school is going to have a party for their graduating seniors. They want to serve food that most of the seniors like. They pick 25 random names from a hat and survey those students. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample

Casey surveyed the members of his soccer team to ask them what their favorite sport is. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample