Electronic circuit board fails randomly with failure rate

Assignment Help Basic Statistics

Reference no: EM1387140

An electronic circuit board fails randomly with failure rate of λ=0.00021 /h. When it fails it is replaced by a new board.

a) What is the expected number µ of board failures per year?

b) What is the probability that exactly 2 boards will fail per year?

c) What is the probability that more than 2 boards will need to be replaced per year?

Reference no: EM1387140

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