Representative sample

Which of the following is an example of a representative sample? A) Surveying every 10th person who enters a store B) Surveying only the first 10 people who enter a store C) Surveying only the people who are already in the store when the survey begins

• Surveying every 5th person who enters a store

• A

• Surveying only the people who leave the store before the survey begins

• Surveying only the last 10 people who enter a store

Why is it important to use a representative sample? A) It saves time and money B) It ensures that the sample accurately represents the population C) It makes the survey more interesting

• Using a representative sample ensures that the sample accurately represents the population, allowing for more reliable and generalizable results.

• It makes the survey more visually appealing

• It guarantees a higher response rate

• It ensures that the sample is biased

If a survey is conducted by asking only the students in the honor roll about their favorite subject, is this a representative or non-representative sample?

• Non-representative

• Random

• Biased

• Representative

What is a non-representative sample? A) A sample that accurately represents the population B) A sample that does not accurately represent the population C) A sample that is too large to be useful

• A

• E) A sample that is too small to be useful

• D) A sample that is randomly selected

• F) A sample that is biased towards a certain group

If a survey is conducted by asking only the people in a retirement home about their technology usage, is this a representative or non-representative sample?

• Random

• Unbiased

• Non-representative

• Representative

Which of the following is an example of a non-representative sample? A) Surveying every 5th car that passes by a street corner B) Surveying only the cars that are parked on the street C) Surveying only the cars that are driving on the highway

• Surveying every 10th car that passes by a street corner

• Surveying only the cars that are parked in a parking lot

• Surveying only the cars that are driving in a residential neighborhood

• A

What is a representative sample? A) A sample that accurately represents the population B) A sample that is too small to be useful C) A sample that is randomly selected

• A sample that is chosen based on personal bias

• A sample that only includes people from urban areas

• A

• A sample that is handpicked by the researcher

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

• Sample

• Population

• Random Sample

• Quartile

The city council in Middlefield wants to know if residents are in favor of a traffic camera at the main intersection in town. Which example is likely to produce a representative sample?

• Drivers who reside in Middlefield

• Residents randomly chosen from the town register

• All residents of Middlefield

• All people with a five-letter last name

A school survey asked 50 girls to identify their favorite items on the school cafeteria menu. This sample is ________________.

• Biased
• Unbiased
• Representative
• Numerical