Solution of problem N4235 Laplace probability theory

Solution of problem N4235 Laplace probability theory

4235. According to a survey, it was found that 30% of buyers required women´s shoes of size 37. It is known that an average of 189 people visit the store on a daily basis. Find the most likely number of buyers who need size 37 women´s shoes and calculate the likelihood of this event.

Additional information:

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