Yates' correction for continuity, or Yates' chi-square test, adjusts the formula for Pearson's chi-square test by subtracting 0.5 from each observed value in a 2 X 2 contingency table. This formula is chiefly used when at least one cell of the table has an expected frequency less than 5.
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... there are 5,013 people, 1,455 households, and 1,223 families residing in the town. The population density is 1,433.7/km² (3,704.7/mi²). There are 1,494 ...