01-01-2023
SAT

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There are five (5) urns and they are numbered 1-5, each urn contains 10 balls. Uni has i defective and 10-i non-defective balls (i = 1, 5). An urn is chosen at random and then a ball is drawn from the chosen urn, the experiment does not know which of the urns was selected (i) What is the probability that a defective ball is drawn (ii) If the ball drawn turns out to be defective, what is the probability that it comes from urn i=5

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