Решение задачи N23 теория вероятностей

23. The daily water flow in the village is a random value, the standard deviation of which is 13 thousand liters. Using the Chebyshev inequality, we estimate the probability that the water discharge at this point during the day deviates from the mathematical expectation in absolute value by more than 26 thousand liters.

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