Every time a provincial or federal election comes on here in Toronto, we look at the partial results and report on "leading/elected".

I've never understood how this is calculated. How do the major news sites who provide these statistics determine when to call a riding "elected" with one leader as opposed to "leading" with only 25% of results in?

1 Answer 1


It's a statistical extrapolation based on exit polling and the partial vote tallies.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .