62 



BELL SYSTEM TECHNICAL JOURNAL 



C 5 10 15 20 25 30 55 40 45 SO 55 60 65 70 _ ?5 « 



90 



5 10 16 20 25 30 36 40 45 50 55 60 5e 



X = Defectives in Universe 



N = 900, ;/ = 100 



CHARTS A 



