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A route consists of the sequence of two links. On average, each of the links fails...

A route consists of the sequence of two links. On average, each of the links fails on one day per month. The failure of the two links occur independently.

a) How often do the two links fail on the same day?

b) When a link fails, on average it is down for 1 day. How often does the route fail?

c) When a link fails, on average it is down for 1 hour. How often does the route fail?

Engineering   Electrical-Engineering   
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