4213. 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 most likely number of buyers who want to buy clothes and calculate the corresponding probability; b) the likelihood that fashionable clothes are purchased from 250 to 280 buyers.

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