Solution of problem N3675 Laplace probability theory

Solution of problem N3675 Laplace probability theory

3675. It is known that 10% of plots under vegetables are poorly processed. How many plots need to be checked so that with a probability of 0.9973 it could be argued that the relative frequency of clogged plots will differ from the probability of contamination by module by no more than 0.01?

Additional information:

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