(From Dartmouth math professor Robert Z. Norman) In 2007 there was a per voter average of voting for 1.81 [of the four] candidates. Hence the proportion of bullet votes had to be fairly small (or else nearly everyone voted for one or all three candidates, but not two, which would seem crazy).
Specifically, if all ballots approved either 1 or 2 candidates, there must have been 19% approve-1 and 81% approve-2 ballots. Norman in later email later hypothesized that actually there may have been a strategy of “either voting for the petition candidate or voting for all [3 opposing] nominated candidates.” If that was the only thing going on then 60% of the votes would have been approve-1 and the remaining 40.5% approve-3s, but in this case approval voting was clearly showing its immense value by preventing an enormous “vote-split” among the 3. In any case the fraction of “approve≥2” ballots presumably had to be somewhere between 40.5% and 81%.
(From Dartmouth math professor Robert Z. Norman) In 2007 there was a per voter average of voting for 1.81 [of the four] candidates. Hence the proportion of bullet votes had to be fairly small (or else nearly everyone voted for one or all three candidates, but not two, which would seem crazy).
https://www.rangevoting.org/DartmouthBack