[EM] Unranked ballot election challenge

[Richard Moore]

Tom Ruen wrote:

> Thanks for catching the 546/526 - the first should have been 526 and
> otherwise the tallies seem correct.

Except for the mistake in the IRV first-round calculation, where 7886 appears
in both the A and C summations:

> > IRV gives a different result:
> > Round 1:
> > A=7886+(1103+546)/2=8112.5 (32.9%) (Third)
> > B=7411+(1103+405)/2=8165.0 (33.2%) (Second)
> > C=7886+(405+526)/2=8351.5 (33.9%) (First)
> > Eliminate A
> > Round 2:
> > B=7411+1103+405/2=8716.5 (35.4%) (First)
> > C=7886+405/2+526=8614.5 (35.0%) (Second)
> > NOTA=7886 (29.6%) (Third)
> > B wins

However, I think the final results shown are correct.

 -- Richard