Question

Midori wants to find out how students reacted to a proposed tuition hike at her school. She sends a questionnaire to every fifteenth person in the school's alphabetical listing of all currently enrolled students. Midori used the technique of ___?

a) Convenience sampling
b) Simple random sampling
c) Stratified sampling
d) Systematic sampling

Answer 1

Midori used systematic sampling by selecting every fifteenth person from an alphabetical list.

Step-by-step explanation:

Midori used systematic sampling when she sent a questionnaire to every fifteenth person in the school's alphabetical listing of all currently enrolled students. Systematic sampling involves selecting members of a population at a regular interval after having defined the starting point. This contrasts with methods like simple random sampling, where each member has an equal chance of being selected independently of the others; stratified sampling, where the population is divided into subgroups (strata) and random samples are taken from each stratum; and convenience sampling, where the samples are selected based on ease of access.