File:Election Samples.png
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editDescriptionElection Samples.png |
English: Number of cases and reliability in samples used for election audits. Some samples are specified as at least 1% (or 3%, 5%) of precincts or voting machines, rounded up to the next whole number of precincts or machines. The sample would typically be hand-counted to find errors made in earlier counts. Other samples are specified as the sample size needed to ensure at least 95% (or 50%) odds that the hand counts will reach one or more precincts where an error is present, given an assumption that 5% of precincts (rounded to the nearest precinct) have errors, such as a bug, or a hack which was trying to pass unnoticed to sway a close election. The graph uses 1 minus the hypergeometric distribution for the odds of missing the erroneous precincts. If more or fewer precincts actually have errors, then odds of finding them are larger or smaller, respectively. |
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Author | Numbersinstitute |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:46, 11 April 2018 | 1,848 × 1,328 (359 KB) | Numbersinstitute (talk | contribs) | Added explanatory text. No change in graph. | |
01:11, 6 April 2018 | 1,828 × 1,046 (283 KB) | Numbersinstitute (talk | contribs) | User created page with UploadWizard |
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