SOLUTION: an electronic device is made up of two components A and B such that the device would work satisfactorily as long as at least one of the components works.The probability of failure

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Question 1148029: an electronic device is made up of two components A and B such that the device would work satisfactorily as long as at least one of the components works.The probability of failure of components A is 0.02 and that of B is 0.1 in some fixed period of time.If the components work independently, find the probability that the device will work satisfactorily during the period.
Answer by ikleyn(52803) About Me  (Show Source):
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The probability that BOTH components fail is  0.02*0.1 = 0.002.


The probability under the question is the COMPLEMENT to it   


    P = 1 - 0.002 = 0.998.      ANSWER

Solved.