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October 22, 2014

October 22, 2014

Posted by **sam** on Monday, February 17, 2014 at 8:34pm.

What is the probability that the following system is up?

What is the probability that the following system is up?

- statistics -
**Damon**, Monday, February 17, 2014 at 9:06pmif n units are independent and the probability of each being up is 2/3 then the probability of all n being up is (2/3)^n

HOWEVER I can not see your flow chart and therefore can not evaluate parallel paths

if there are two ways to get from A to B

and the probability of failure of each branch is 1/3

then the probability of both failing is (1/3)(1/3) = 1/9 and the probability of getting from A to B one way or another is 1 - 1/9 = 8/9

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