In national polling, samples need to be enormous to be accurate reflections of the larger target population.

Question

Quizplus · Accepted Answer

National polls can be accurate with much smaller sample sizes if the sample is representative of the larger population. Typically, a well-designed poll of around 1,000 to 2,000 people can provide a good estimate of public opinion for the entire country, assuming the sample is properly randomized and stratified to reflect the demographics of the national population.

In National Polling, Samples Need to Be Enormous to Be