matthewmt2032 matthewmt2032 20-02-2024 Mathematics contestada An urn contains 10 red, 5 black, and 3 green balls. Two balls are picked (one after the other) from the urn. Given that the second ball is red, find the probability that the first was green. a) 3/51 b) 3/17 c) 1/17 d) 10/17