Exploring Sampling Methods: Day 1

What is a population in the context of sampling?

• A random selection of individuals

• A small group selected from a larger group

• A group of volunteers

• Every member of a group that a subject can be drawn from

Why is sampling often more practical than surveying an entire population?

• It is always more accurate

• It is quicker and more feasible

• It eliminates all biases

• It includes every member of the population

What is a key disadvantage of sampling?

• It is never representative of the population

• It always requires a large sample size

• It is only reliable if it is representative of the population

• It is always time-consuming

In the scenario where a consumer advocacy group tests 845 new cars, what is the sample?

• All new cars sold in the United States

• The 845 new cars tested

• All cars in the world

• The average mileage of 25.1 miles per gallon

Which sampling method involves selecting members of the population that are easy to reach?

• Simple random sampling

• Voluntary response sampling

• Cluster sampling

• Convenience sampling

What is a major con of convenience sampling?

• It is not necessarily representative of the population

• It is very time-consuming

• It requires a lot of resources

• It is difficult to implement

Which sampling method allows members of the population to volunteer to be in the sample?

• Simple random sampling

• Systematic sampling

• Convenience sampling

• Voluntary response sampling

What is a key disadvantage of voluntary response sampling?

• It always requires a large sample size

• It is difficult to find volunteers

• It is very expensive

• It is not representative because it attracts people with strong opinions

In simple random sampling, what must be true for each member of the population?

• They must be easy to reach

• They must volunteer to participate

• They must have an equal chance of being selected

• They must be part of a specific subgroup

If you ask students around you in your first period class about their opinions on the new schedule, which sampling method are you using?

• Simple random sampling

• Voluntary response sampling

• Stratified sampling

• Convenience sampling