Even when nonsampling risk is zero, there is always a possibility that a sample is not representative of the population.

Question

Quizplus · Accepted Answer

This is because of the variability inherent in taking a sample. No matter how carefully the sample is selected, there is always a chance that it may not accurately represent the population. This is why sampling error exists, even when nonsampling risk (such as measurement error or respondent bias) is minimized.

Even When Nonsampling Risk Is Zero, There Is Always a Possibility