Polls that use large random samples yield very accurate predictions. Since 1936, Gallup poll results taken just before U.S. National election days have diverged from actual election results by an average of only about _____.
A) 2%
B) 4%
C) 6%
D) 8%

Question

Quizplus · Accepted Answer

Gallup polls have historically been quite accurate, with an average divergence of about 2% from actual election results since 1936.

Polls That Use Large Random Samples Yield Very Accurate Predictions