Question

in a study, the sample is chosen by dividing the population by voting precinct, and sampling everyone in the precincts selected. what is the sampling method? simple random systematic stratified cluster convenience

Explanation:

Cluster sampling divides the population into groups (clusters), here the voting - precincts are clusters, and then selects entire clusters for the sample. In this case, entire voting precincts are selected and everyone in those precincts is sampled. It's not simple random (no random selection of individuals), not systematic (no fixed - interval selection), not stratified (strata are not homogeneous subsets but clusters are heterogeneous groups), and not convenience (not based on ease of access).

Answer:

Cluster