In the end, Forest had a four-point margin down to the 3rd positioned-team Sunderland, prompting an immediate return to the top flight.

With a four-point margin of error on each candidate's result, even this seemingly larger lead was at the edge of the poll's margin of error.

The difference was within the poll's four-point margin of sampling error.

The teams traded leads early on, then Brazil moved out to a four-point margin 13-9.

It had a four-point margin of error.

England's 34-32 half-time lead left them bang on target for the four-point margin required to overturn last year's narrow 77-74 reverse in Moscow.

They now lead their nearest rivals Chelsea, Blackburn Rovers and Liverpool by a four-point margin.

With a four-point margin of error, that was the equivalent of a tie.

Polling indicated that the race would be close, and on election day, Heinrich won a second term by nearly a four-point margin and 8,000 votes.

These figures had a four-point margin of error.