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365. There are 6400 lamps in the residential building, the probability of including each of them in the evening is 0.5. Find the probability that the number of simultaneously switched on lamps will be:

A) is equal to 3500;

B) between 3120 and 3200.

A) is equal to 3500;

B) between 3120 and 3200.

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

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