Gathering & Using Data: Avoiding Bias

1. A sample in which every person, object, or event has an equal chance of being selected.

• A. Random sample.
• B. Biased sample.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

2. When a sample does not accurately represent the population it is a:

• A. Unbiased sample
• B. Biased sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

3. A public library asked every 10th person who entered to name the type of book they were getting.

• A. Biased
• B. Unbiased

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

4.  Carlos wants to know the favorite sport of people at his school so he asks his baseball team.

• A. Biased
• B. Unbiased

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

5.  A hospital wants to open a gym. They ask the night-shift ER staff when they would use the gym.

• Biased
• Unbiased

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

6. Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

• A. Thirty randomly selected students from her school
• B. Thirty students who are rarely tardy
• thirty of her friends

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

11. Larger random sample sizes are more representative of a population.

• A. True
• B. False

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A radio station in Raleigh, NC wants to know the most popular song of the week. The DJ surveys random listeners who call in throughout the week. What is the population of the DJ’s survey?

• all the people in Raleigh, NC
• listeners of this radio station
• the listeners who call the station
• the most popular song of the week

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1