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4134. The district power station provides a network wit 2019

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Description

4134. The district power station provides a network with 30,000 lamps, the probability of switching on each of them in the evening is 0.6. Determine the probability that the number of lamps simultaneously turned on in the evening will be between 15,000 and 17,000.

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Additional information

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

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