8. Each of two urns contains green balls and red balls. Urn I contains 10 green balls and 8 red balls. Urn II contains 3 green balls and 10 red balls. If a ball is drawn from each urn, what is P(red and red)?

Answer 1

the two drawings are independent events (they don't affect each other)

p(r & r) = (8/18) * (10/13)