In 1936,the news magazine Literary Digest obtained the opinions of over two million Americans regarding the presidential election.The results suggested that Landon would win in a landslide over Franklin D.Roosevelt.A few weeks later,FDR won in a landslide.The results of the survey were not valid,and this was due to

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The incorrect results of the survey were due to sampling bias, as the sample of Americans surveyed by Literary Digest was not representative of the larger population and instead overrepresented certain groups (such as more affluent and Republican-leaning individuals).

In 1936,the News Magazine Literary Digest Obtained the Opinions of Over