Commentary
“Garbage in, garbage out” is a well-known adage that means the quality of the input determines the quality of the output in any system. For example, if a mathematical equation is improperly expressed, the answer is likely to be incorrect. The same applies to public polling. If the survey questions are vague or biased, if they are not given to a random sample of the larger population, or if they exceed the knowledge or experience level of those polled, the results are likely to be inaccurate.
