Решение задачи N4214 теория вероятностей Лапласа

4214. It is established that a third of buyers wish to purchase fashionable clothes. The store is visited by an average of 800 people per month. Find: a) the likelihood that at least 250 buyers will acquire fashionable clothes; b) the most likely number of customers who want to buy fashionable clothes and calculate the probability corresponding to this event; c) the relative frequency of buyers who want to buy fashionable clothes will deviate from probability by no more than 0.05 (in absolute value).

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