Data Reduction
15
99,9
95
9O
80
2O
2
O.
0.01
Figure 1.2
Inches of Rainfall
Percent failure rainfall data for Fig. 1.3 per Sturges Rule/3~1.516.
and the/~ through the data is 15.87 and the smallest/3 is 7.00 with the 50th
percentile of 38,000-39,000 psi. The Gaussian values, Eqs. (1.1), are plotted
as a dotted line in Fig. 1.4.
~ = 39,370psi ~ = 1057
(1.52)
The solid line Weibull curve plotted in Fig. 1.4 has three parameters for Eq.
(1.2), (1.14)
fl = 3.12371 ±0.4310 0 = 3,218.959 + 1,756
(1.53)
7 = 36,497 ± 1,634psi
15
99,9
95
9O
80
2O
2
O.
0.01
Figure 1.2
Inches of Rainfall
Percent failure rainfall data for Fig. 1.3 per Sturges Rule/3~1.516.
and the/~ through the data is 15.87 and the smallest/3 is 7.00 with the 50th
percentile of 38,000-39,000 psi. The Gaussian values, Eqs. (1.1), are plotted
as a dotted line in Fig. 1.4.
~ = 39,370psi ~ = 1057
(1.52)
The solid line Weibull curve plotted in Fig. 1.4 has three parameters for Eq.
(1.2), (1.14)
fl = 3.12371 ±0.4310 0 = 3,218.959 + 1,756
(1.53)
7 = 36,497 ± 1,634psi