*** *** *** optical-ber cable with *** *** *** 0.7 *** *** 100 feet. *** is *** *** *** *** *** be *** 3 aws *** 1100 *** *** cable? Round your *** to *** decimal places.
Solution
Let *** the number *** *** *** the optical-ber *** *** *** of *** *** 100 feet cable *** 0:7 .
Thus *** *** number of aws per 1100 feet of *** *** *** *** *** *** 1100 *** 7
:7 .
X P(7 *** *** probability *** function *** *** *** in the *** feet cable) *** Poisson *** with
= 7 *** is
P(X *** *** e
7:7
(7 :7) x *** *** x
= *** *** ; *** *** *** that exactly 3 aws *** *** *** *** *** cable *** *** *** *** e
7:7
7 :7 3 3!
= 0 :0345
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