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1418. In the manufacture of facing tiles 70% of products are top-notch. How many tiles should be taken so that with a probability exceeding 0.99, it could be argued that the share of first-class tiles among them will differ from the probability of 0.7 by no more than 0.05 (in absolute value)?
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- Added to the site 20.11.2017
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Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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