Sampling Techniques Quiz

Which of the following is a type of non-probability sample?

• Simple random

• Judgment

• Cluster

• Systematic

Why do scientists use sampling techniques to gather population data rather than counting everything?

• scientists are lazy

• sampling is more efficient and achievable.

• sampling is more accurate

• scientists prefer estimations

• sampling is cheaper

What do we call a sample that is drawn from a number of separate strata of the population, rather than at random from the whole population, in order that it should be representative?

• Simple Random Sample

• Convenience Sample

• Stratified Sample

• Systematic Sample

A sampling frame is

• A list of all those within a population who can be sampled, and may include individuals, households or institutions.

• A technique used to select sample

• Part of the sample proportion

• A member of the population

Which of the following statements describes stratified sampling?

• Stratified sampling is used when the population has known subsets.

• Stratified sampling is used when every item has the same chance of being selected.

• All of the statements describe an aspect of stratified sampling.

• Stratified Sampling is where samples are chosen in a regular way

A Statistics student did a research on the time spent by Grade 12 students playing video game. He selected the subjects by using the Table of Random Numbers. What technique is used?

• Stratified Random Sampling

• Cluster Random Sampling

• Simple Random Sampling

• Systematic Random Sampling

Why is Convenience Sampling often considered less reliable?

• Convenience Sampling ensures a representative sample of the population.

• Convenience Sampling can introduce bias due to the non-random selection of participants.

• Convenience Sampling eliminates the need for random selection.

• Convenience Sampling reduces the likelihood of bias in research.

The sample does not accurately represent the population

• Non-probability Sampling

• Probability Sampling

Used when sampling bias must be reduced

• Non-probability Sampling

• Probability Sampling

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys. She selects the five closest to her desk.

• Simple Random

• Voluntary

• Convenience

• Systematic