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Solution of problem N1167 Laplace probability theory
1167. 400 samples of ore are to be examined. The probability that the industrial iron content in each sample is above 50% is 0.8. Find the probability that among the 400 samples tested, the ore with an industrial iron content of more than 50% is at least 300.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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Discount for regular customers! If the total of your purchases from the seller
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