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Mathematics, 26.02.2020 21:32 adazeb2003

A vehicle with a particular defect in its emission control system is taken to a succession of randomly selected mechanics until r = 18 of them have correctly diagnosed the problem. Suppose that this requires diagnoses by 20 different mechanics (so there were 2 incorrect diagnoses). Let p = P(correct diagnosis), so p is the proportion of all mechanics who would correctly diagnose the problem. What is the mle of p?

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