Solution of problem N3211 Bernoulli probability theory

Solution of problem N3211 Bernoulli probability theory

3211. Determine the probability that with a five-fold throwing of a dice, an even number of points drops at least three times (note that “at least three times” means 3, 4 or 5 times (in five throws), i.e., the amount of incompatible events).

Additional information:

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