How do exit polls work and how accurate are they?
David Dimbleby has called exit polls ‘the worst invention ever’ (Picture: Getty)
The release of the exit poll is one of the defining moments of every general election.
Broadcast when polling stations close at 10pm, it offers a considerably more reliable prediction of the final result of the vote than the surveys released in the weeks before.
Peculiarities about the UK electoral system make it extremely difficult to predict the outcome.
But the British exit poll is...
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