Solution of problem N3473 Bernoulli probability theory

Sold 0
Refunds 0
Good feedbacks 0
Bad feedbacks 0

3473. 5 independent tests have been carried out, each of which consists of simultaneously throwing up 2 coins. Find the probability that exactly in 3 trials two coats of arms appeared.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)