Based on the mean PE(subscript M) and mutation rate of 13 CODIS loci, The probabilities of inconsistence under paternity and non-paternity were calculated respectively according to binomial theorem.

• 根据平均单亲非父排除率和平均突变率，用二项分布公式分别计算出现不同数目矛盾基因座时真父和假父的概率和似然率（亲权指数）。