Solution of problem N1247 Laplace probability theory

Solution of problem N1247 Laplace probability theory

1247. In region X of some candidate in the state. the Duma is supported by 60% of the population. When polling public opinion, 1200 people were chosen. With what probability can it be asserted that the proportion of voters from this sample supporting the candidate differs from the true share not more than 0.05.

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Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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