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X2(obs)

Abbreviation(s) and Synonym(s):

None

Definition(s):

  The chi-square statistic computed on the observed values. See Sections 2.2, 2.4, 2.5, 2.7, 2.8, 2.10, 2.12, 2.14, and the corresponding sections of Section 3.
Source(s):
NIST SP 800-22 Rev. 1a