Many landfills and dumps in the United States contain toxic materials. To see what proportion of the landfill contains toxic materials, the landfill is divided into 10,000 square grids that are each 10 feet by 10 feet square. After selecting one square grid at random to test for toxic materials, every five hundredth grid after that is selected for testing. What kind of sampling does this illustrate?
A)Systematic
B)Stratified
C)Cluster
D)Random sampling

Question

Quizplus · Accepted Answer

This is an example of systematic sampling because it involves selecting a starting point at random and then selecting every nth item (in this case, every five hundredth grid) in the population thereafter.

Many Landfills and Dumps in the United States Contain Toxic