418 



CHARTS, GRAPHS, TABLES, AND COMPUTATIONS 



tl 0,5 I Z 5 10 20 30 40 50 60 ?ll 80 90 95 9« 99 935 

 P of N,>Ordmote Value 



05 12 5 10 2030«)50EOTOiO 9095 90! 

 P of N, > Ordmole Value 



I S K) ZO3O4OSOC0TD80 90 95 

 P of N, > Ordmote Value 



2 5 10 20304050607090 9035 9!! 

 P of N, > Ordinate Value 



Figure 9.18. Cumulative 'probability distribution of Ns, Colorado Springs, Colo. 



230 



99.99 0.01 



0.1 I 5 20 40 60 80 95 99 99.9 01 I 5 20 40 60 80 95 99 99 9 



P OF N, > ORDINATE VALUE 



FiGURK 9.19. Cumulative probability distribution of Ns, Salt Lake City, Utah. 



