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Explain how during the past Presidential election how so many statisticians got the projections of the...

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Basic Math

Explain how during the past Presidential election how so manystatisticians got the projections of the elections wrong?

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Predicting elections is hard For various reasons most importantly their relatively low frequency and high rate of change among predictive variables predicting the outcome of elections with high certainty is a near impossible task There is also uncertainty about sampling error because when you rely mostly on telephone survey sampling current practice this introduces a bias when the possession of phones    See Answer
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