Assertion: continuity | /r/CapableOf | adjust the formula
Facets:
value: by subtracting 0.5
type: MANNER
Source sentences:
text: To reduce the error in approximation, Frank Yates, an English statistician, suggested a correction for continuity that adjusts the formula for Pearson's chi-squared test by subtracting 0.5 from the difference between each observed value and its expected value in a 2 × 2 contingency table.