Consider the system below. If Pr(A) = Pr(B) = Pr(C) = Pr(D) = Pr(E) = 0.05 is the failure probability of components of this system for a given mission, determine system failure probability using any...

Consider the system below.

If Pr(A) = Pr(B) = Pr(C) = Pr(D) = Pr(E) = 0.05 is the failure probability of components of this system for a given mission, determine system failure probability using any two methods and discuss which one is more accurate and why?