Population and Sample

A bagel shop takes a survey to find the approximate percentage of its customers who prefer the new shop hours. What is the population of this​ survey?

• All of the bagel​ shop's customers

• All bagels sold by the bagel shop

• The customers who were surveyed

• All people in the same town as the bagel shop

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A survey company was trying to see if people in a state thought the pollution was too high. Which choice BEST represents the population to be surveyed?

• A selection of people from each neighborhood in the state.

• A selection of people who live in small towns.

• Every person in the state.

• A selection of people who live in dirty neighborhoods.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

The entire group studied.

• sample
• population

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

The part of the population being studied

• population
• sample
• random

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A toy store owner is tracking how much kids spend each month on toys. Which choice BEST represents a sample?

• All of the kids who buy toys.

• 275 rich kids

• 200 random kids of all ages

• 292 boys ages 7-15

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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

Marianne wanted to know students' opinion on the new schedule at school. She places students' names in a container and randomly picks out 20 names. 

• Convenience Sampling
• Systematic Random Sampling
• Simple Random Sampling
• Volunteer response

Tags

CCSS.HSS.IC.B.3

Determine if the following study is biased.

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

Determine if the following study is biased.

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

Determine if the following question is biased.

Are stoplights needed at the intersection of Main and Perry Streets?

• Biased

• Unbiased

Tags

CCSS.RL.11-12.6