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UMLS. CSP-HL7-ICD9CM-NCI-NDFRT-RXNORM
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
C C- C1 C3 C5 C6 C7 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ
CH CH1 CHA CHC CHD CHE CHG CHH CHI CHK CHL CHN CHO CHP CHR CHS CHU CHV CHY

chi square

[Used to describe the sum of squares of random variables which occurs when a variance is estimated (rather than presumed) from the sample. The only parameter of the c2-distribution is n, so called the number of degrees of freedom (which is the number of independent parts in the sum). The c2-distribution is a special type of g-distribution with parameter a = n /2 and b = 2. Hence, m = n and s2 = 2 n. ( HL7V3.0 )]
UMLS (HL7) C1552646
 
Quantitative Concept
Relation/PAR: ProbabilityDistributionType

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