random samples and popoulation

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.7.SP.A.2

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

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

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

Why do we randomly select our samples?

• for control
• reduce bias
• so we don't get the same answers from everyone
• to eliminate confounding results

Tags

CCSS.HSS.IC.B.3

A gaming website wanted to find out which console its visitors owned.

Which choice best represents the 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.HSS.IC.A.1

CCSS.HSS.IC.B.3

An entire group of objects - people, animals, plants - from which data can be collected.

• population

• sample

• representative sample

• random sample

A portion of the population that has the same characteristics as the population.

• population

• sample

• random sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Garret wants to find out which restaurant people think serves the best beef brisket in town. What is the population from which Garret should find a sample?

• The residents of the town.

• All of the students who attend school.

• The residents who each the first restaurants.

• All adults in the town.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A musician wanted to see what people who bought his last album thought about the songs.

Which choice best represents a sample?

• Every person who bought the album.

• A selection of people who didn't want to buy the album.

• 250 girls who bought the album.

• A selection of 3,294 people who bought the album.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3