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Boulder County is planning to use optical scanners to tabulate hand-marked "fill in the bubble" paper ballots for the 2004 general election. CVV, the commissioners, and the elections division are trying to get a randomly-chosen sample of the "live" ballots in the election also counted by hand, concurrently with the machine count. The hand-count tally for the sample would be compared with
the machine tally for the same sample. If they aren't the same, one of them
Boulder County is planning to use scanning and image processing to interpret and tabulate hand-marked "fill in the box" paper ballots for the 2004 general election. CVV, the commissioners, and the elections division are trying to audit a randomly-chosen selection of the "live" ballots in the election, which would also be interpreted and tallied by hand, concurrently with the machine processing. The manual results would be compared with the machine results. If they aren't the same, one of them
is wrong, and the discrepancy should be resolved via further counts and investigations.
California, for example, audits all its elections by requiring that 1
percent of all paper ballots be manually recounted,whether or not
an election is contested.
In addition, there is some interest in hand-counting a "statistically valid"
sample that could be compared with the overall election results. For close elections, the number of ballots that would need to be counted to get
a margin of error that is comfortably smaller than the margin of victory could become a large fraction of the overall number
of ballots.
a margin of error that is comfortably smaller than the margin of victory could become very large.
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