series,Independent trace inclusion probability,Probability of seeing at least one of 20 failures 1-(1-p)^20,0.001,0.01981113517046529 1-(1-p)^20,0.005,0.09538951972538245 1-(1-p)^20,0.01,0.18209306240276923 1-(1-p)^20,0.02,0.33239202824490577 1-(1-p)^20,0.05,0.6415140775914581 1-(1-p)^20,0.1,0.8784233454094307 1-(1-p)^20,0.2,0.9884707849539315 1-(1-p)^20,0.5,0.9999990463256836 1-(1-p)^20,1.0,1.0