To conduct a survey about the type of phone service

Asked by maham237 @ in Mathematics viewed by 295 People

most people in Greenville prefer, 10 different blocks in the neighborhood are chosen. On these 10 blocks, 10 houses are selected at random, and then one resident of each of those houses is interviewed. This type of sampling method is simple random sampling.
stratified sampling.
systematic random sampling.
cluster sampling.

Answered by maham237 @


The correct answer is stratified sampling.

Explanation:

In stratified sampling, the population is divided into different subgroups. The final selections are chosen proportionally from each subgroup.

In this situation, the subgroup is the block. From each block, 10 houses are randomly selected and 1 person interviewed. These are proportional between the blocks.

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