Stats Review

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

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

12. Which random sample is the more likely it is to represent the population of a Jupiter Middle School  accurately?

• A. Five students of a school.
• B. Five hundred students of a school.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

14. Biased questions lead people to answer a particular way.

• A. True
• B. False

Tags

CCSS.RL.11-12.6

A mayor wanted to see if the people in his town thought he was doing a good job. Which choice best represents a sample?

• 1,000 unemployed voters.

• The mayor's family.

• The residents of the town.

• 242 voters.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A gaming website wanted to find out which console its visitors owned. Which choice best represents a population?

• Visitors to the 3DS section.

• All of the website visitors.

• Visitors to the PS4 section.

• Visitors who are on the website for more than 5 minutes.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1