— Ty | ws . _ = 
EXPECTANCY IAGRAMS-TEN TS . ROBABE LIFE o 
10,000 [unITS, 
< 
r 
—_— ———————— ——— —- 
Note:-These Curves are based on the Hypothesis 
that no unit will materially if at all survive twice ' 
its probable life, and that at the end of the prob- “ 
| able life term the rate of failures will be equal to 
> the original number of units divided by the prob- 
Te 9,007 able life 
Xe 
8,000 
lg LY 
2 | 7,000 ? 
— 
[0 
' = 5 = 
21 6,0008 
mt Laas 
5] <i : 
¢ : = 
Fy 
re 
ad 
ph 
ro 
Ll 
+ . 
» 1 
2,600 
5b - 
| = Cp i 
| wt 
1,000 | <% 1 yo 4 
BE mal 8 thet Fas CE TWEE TW 0 To = TW TT) 
Years 
Fis. I.