Question

if a researcher selects every 10th person from a list for their sample, which sampling method are they using?
a. cluster sampling
b. stratified sampling
c. random sampling
d. systematic sampling

Explanation:

• Cluster sampling: Involves dividing the population into clusters and then randomly selecting some of these clusters.
• Stratified sampling: Divides the population into subgroups (strata) and then samples from each stratum.
• Random sampling: Each member of the population has an equal chance of being selected, usually without a fixed interval.
• Systematic sampling: Selects elements from an ordered population at regular intervals. Here, selecting every 10th person is a fixed - interval selection, which is characteristic of systematic sampling.

Answer:

d. Systematic sampling