Mathematics, 24.04.2020 16:57 Brandikitts
When commercial aircraft are inspected, wing cracks are reported as nonexistent, detectable, or critical. The history of a particular fleet indicates that 68% of the planes inspected have no wing cracks, 27% have detectable wing cracks, and 5% have critical wing cracks. Five planes are randomly selected. (Round your answers to three decimal places.) (a) Find the probability that one has a critical crack, two have detectable cracks, and two have no cracks. 0.051 (b) Find the probability that at least one plane has critical cracks.
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