surveys and samples

• stratified

• self-selected

• systematic

• Random

What type of data gathering ensures all parties have an equal chance to be chosen?

• systematic sampling

• random sampling

• self-sampling

• stratified sampling

What type of sampling occurs when only those people whose names were drawn out of a hat are surveyed?

• random sampling

• self-sampling

• convenience sampling

• stratified sampling

Surveying every fifth house on the block in your neighborhood is an example of?

• random sample

• systematic sample

• self-selected sample

• convenience sample

• random sample

• systematic sample

• number sampling

• convenience sample

A researcher chooses 10 students randomly from a classroom. What type of sample is describe here?

• Census

• Random Sample

• Stratified Sample

• Systematic sample

A sports analyst contacts some NBA coaches about whether or not they think defense is more important than offense. If the analyst only contacts the coaches whose team’s name starts with a “C,” what is the sampling method used?

• self-selected

• random

• systematic

• convenience

Anna wants to do a study on the people that voted in the recent election, she decides to talk to random people around her town. What is the population and what is the sample?

• a. Population: All the people that voted in the election. Sample: The random people she talks to around town

• Population: The random people she talks to around town. Sample: All the people that voted in the election

• Population: All the people that voted in the election. Sample: The people that voted for a specific candidate.

• Population: Everyone that lives in her town. Sample: All the people that voted in the election.

Complete the definition:

Random Sample is when data is collected without _________.

Sarah wants to do a study on the giraffes around the world, but she can only collect data from the giraffes in the plains in her country.

The population is ________