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What is an exit poll?
An election exit poll is a poll of voters taken immediately after they have exited the polling stations. Unlike an opinion poll, which asks whom the voter plans to vote for or some similar formulation, an exit poll asks whom the voter actually voted for. A similar poll conducted before actual voters have voted is called an entrance poll. Pollsters - usually private companies working for newspapers or broadcasters - conduct exit polls to gain an early indication as to how an election has turned out, since in many elections the actual result may take hours or even days to count. Typically a question that is asked is... "who did you vote for?"
Is accuracy a measure of how close an answer is to the actual or expected value?
Precision and accuracy are two ways that scientists think about error. Accuracy refers to how close a measurement is to the true or accepted value. Precision refers to how close measurements of the same item are to each other. Precision is independent of accuracy.
What is aceptable drawing accuracy standard?
The answer depends on the purpose. For example, the accuracy required from an engineering drawing is much greater than a child's drawing of his house.
How is probability expressed?
as a fraction
It has to do with the accuracy and precision of a measurement procedure?
Reliability!
