Fair Samples

Which describes a representative sample of the population for the situation?

• a randomly selected group of members at a local gardening club

• a randomly selected group of residents from the city’s voter registration records

• a randomly selected group of workers at a factory that employs a large percentage of the city

• a randomly selected group of residents in the neighborhoods affected by the proposal

_______ is a part of a group being surveyed.

• Sample

• Population

• Random Sample

• Quartile

What type of sampling method was used?

• Simple Random Sample

• Systematic Random Sample

• Convenience Sample

• Voluntary Response Sample

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample

• Population

• Random Sample

• Quartile

The sample represents the population.

Choose the answer that says "Representative Sample"

• Random Sample

• Biased Sample

• Representative Sample

The sample represents the population.

Choose the answer that says "Representative Sample"

• Random Sample

• Biased Sample

• Representative Sample

7.SP.1

• A

• B

• C

• D

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?

• thirty students who are often tardy

• thirty students who are rarely tardy

• thirty of her friends

• thirty randomly selected students from her school

Mrs. Croix is conducting a survey to find out the favorite snack of fifth and sixth graders. She will ask a sample of 100 students. Which of the groups below should be surveyed to get the BEST representative sample?

• 100 students at the movie theater

• the first 100 students who go to a local baseball game

• 5 students from each of the 20 local elementary schools

• 20 students from each of the 5 local fifth- and sixth-grade schools

What is the probability of spinning an odd number?

• Impossible

• 2/5

• 3/5

• Certain