Quote:
Originally Posted by ballin
Maybe this has been asked and answered already but I read earlier this week that there was a record 7 million votes cast in advanced polls. Global shows roughly two million total votes counted. How can an election be called already?
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The same way polls can fairly accurately predict outcomes with extremely small sample sizes. You can model a lot of this ahead of time, and use the trends from past elections to predict the outcome. Once your model is showing a high enough chance of outcomes, you call it. Science.