Combined failure rate of system A and B?

  1. 1. The problem statement, all variables and given/known data

    If I have two system A with failure rate of X and two system B with failure rate of Y then what would be the combined failure rate of system A and B?

    2. Relevant equations



    3. The attempt at a solution

    I know how to find the combined failure rate of A and the combined failure rate of B.
    So I just add them and divide by 2?
     
  2. jcsd
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