Population, Sample, and Estimating

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.7.SP.A.2

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

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.7.SP.A.2

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.7.SP.A.2

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

• C. Thirty students who are always tardy

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

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

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A music store gives comment cards to all members of its Jazz Club to find out about satisfaction with the club's features.  Identify the sample.

• People who play instruments.
• All music store customers except Jazz Club members.
• All music store customers
• Jazz Club members

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A scientist studies a herd of mule deer to learn about deer dietary habits.  Identify the population.

• All animals

• Mule deer

• Deer

• Mules

A restaurant offers many drink options in one day they sold 50 drinks. Out of those 50 drinks 15 of them were apple juice. If they had sold 250 drinks, estimate how many would be apple juice.

SET UP THIS PROPORTION IN YOUR NOTEBOOK

• 65

• 5

• 150

• 75