In order to secure participants for his study, Jason uses class rosters from instructors. Jason selects every 5th person on the instructor’s class rosters for participation in his experiment. Jason is using sampling.

Systematic sampling.

Explanation:

Systematic sampling is a kind of sampling that has to do with taking samples at regular intervals from a population, the population is given numbers a number is chosen randomly by dividing the population by the sample size(a portion of the large population which is used for the experiment).

Systematic sampling is used to get an unbiased statistics from the the large population.

From the question we can see that "Jason selects every 5th person on the instructor’s class rosters for participation in his experiment" which is done by dividing the population by the sample size.

Jason is using SYSTEMATIC SAMPLING.

Explanation: SYSTEMATIC SAMPLING is defined as a statistical method involving the selection of the subset of a population in which larger population are selected according to a random starting point but with a fixed, periodic interval. Jason selecting every 5th person on the instructor’s class rosters for participation in his experiment is an example of selecting at random with a fixed periodic interval.

the correct answer on edgen is:

(c.) prevent the spread of communism.

i just took the test.