Polls that use large random samples yield very accurate predictions.Since 1936, Gallup poll results taken just before US 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

The question states that large random samples yield very accurate predictions and mentions the specific example of Gallup polls taken before US national elections. It then provides the average divergence between those poll results and actual election results, which is only about 2%. Therefore, the best choice is A, which matches this average divergence.

Polls That Use Large Random Samples Yield Very Accurate Predictions