When a 1936 Literary Digest poll found overwhelming support for Alfred Landon's presidential bid over Franklin Delano Roosevelt,they made an erroneous prediction that Landon would defeat FDR.What are the probable sources for error in their poll that helps explain their mistake?
A)Nonresponse rate was high.
B)Sample was not representative of the population.
C)Failed to use probability sampling techniques.
D)All of these

Question

Quizplus · Accepted Answer

All of these factors likely contributed to the error in the poll. A high nonresponse rate would mean that the sample size is not representative of the population, and if probability sampling techniques were not used, the sample could be biased in favor of certain groups.

When a 1936 Literary Digest Poll Found Overwhelming Support for Alfred