Question

Statistics & Probabilities

Answer 1

A worker worked in pieces. Let's note with Ai the event
as the i-crafted piece is damaged. Express in terms of the events:
none of the songs worked is not damaged;
at least one of the pieces is faulty;
only one piece is damaged;
exactly two pieces are defective;
more than two pieces are defective.

Answer 2

songs*=pieces sorry

Answer 3

here's my method