Calculation of Joint Probability of a Genotype Based on Seven CODIS STR Markers

Table E.3 Calculation of Joint Probability of a Genotype Based on Seven CODIS STR Markers Marker Genotype Frequency From Example Analysis E.2: D351358 2[(0.162)(0.015)] = 0.0049 vWA (0,134)2 = 0.0180 FGA 2[(0.125)(0.094)] = 0.0235 From Example Analysis E.3: D55818 2[(0.112)(0.081)] = 0.0181 D13S317 (0,095)2 = 0.0090 D75820 2[(0.231)(0.105)] = 0.0485 D19S443 2[(0.082)(0.131)] = 0.0215 The joint probability of the genotype is the product of the individual genotype frequencies: (0.0049)(0.01 80)(0.0235)(0.01 81 )(0.0090) (0.0485)(0.0215) = 3.52 X 10—13.