An aeroplane has four engines that all work independently of each other. The probability of an engine failing during a flight is 3 !! 10??. If the plane can fly on two engines, calculate the probability that the plane is unable to fly
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The probability of an engine working is $1 - 3 \times 10^{-6} = 1 - 0.000003 = 0.999997$. Show more…
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