Question

The probability of A, B, C, and D all equal .98. Please show calculations.2.3 Conditional probability and independence Example 3 An electrical system consists of four components as illustrated on the whiteboard. The system works if components A and B work and either of the components C or D works. The reliability (probability of working) of each component is also shown. Find the probability that [a] the entire system works and b] the component C does not work, given that the entire system works. Assume that the four components work independently.

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Answer #1

Define two events as below.

Let R be the event that the entire system works.

And let E be the event that the component C doesn't work.

Then we follow following calculations -

a)F the ente system to wox, Combanents A andl elause ail = (0.98 +0-38)-(e.g8), R)98) 033) .9R) in otder to tun the enthe systen Sol PCEMA) 010188 2384 CENR 00 18 8 238y 0.960 0 15 84 51 Nİo-01960984314

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