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Mathematics 14 Online
OpenStudy (anonymous):

An X-ray has probability of 0.96 of showing a fracture in the arm. if four different X-rays are taken of a particular fracture ,how find probability that: 1.all four show the fracture 2. the fracture does not show up 3.at least three X-rays show the fracture 4.only one X-ray shows the fracture

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