Решение задачи N37 теория вероятностей Чебышева

37. The average value of the wind speed at the Earth in a given locality is 20 m / s. Using the Chebyshev lemma, estimate from below the probability that at one observation in a given locality the wind speed will be less than 80 m / s.

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