How is a post-election survey conducted? Why do the predictions differ from each other?

English

How is a post-election survey conducted? Why do the predictions differ from each other?


Tanglish

Therthalukkup pinthaiya karuththukkanippu evvaru nadakkiradhu? Kanippugal ondrukkonru maarupaduvadhu en?


Tamil

தேர்தலுக்குப் பிந்தைய கருத்துக்கணிப்பு எவ்வாறு நடக்கிறது? கணிப்புகள் ஒன்றுக்கொன்று மாறுபடுவது ஏன்?

மூலதளம்: BBC News தமிழ்
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