Which of the following types of polling would allow for an understanding of the entire population, within a known level of error?

Question

Which of the following types of polling would allow for an understanding of the entire population, within a known level of error?​

Quizplus · Accepted Answer

Random sampling is the only type of polling that allows for an understanding of the entire population, within a known level of error. This is because random sampling uses a representative sample of the population, which can be used to make inferences about the entire population. Convenience sampling, log-in polls, intercept polls, and self-selected listener polls all have biases that make them less reliable for understanding the entire population.

Which of the Following Types of Polling Would Allow for an Understanding