Voodoo polling v proper polling (festive edition)
One of the earliest lessons I learned about opinion polls was that an unweighted poll, no matter how large the sample size is, isn’t an accurate barometer of the public. The most famous voodoo poll was the 1936 Literary Digest poll that had a sample size of over 2 million predicted that Alf Langdon would beat FDR in the 1936 Presidential election. It was only 39% out on the actual result as FDR as won by over 24% of the…