jadavis2002 jadavis2002 19-11-2020 Mathematics contestada 1 of 10 A jar has 19 gray marbles, 34 black marbles, 15 red marbles, and 31 white marbles. Answer the following questions: What is the probability you select a red or a black marble? 15.2% B 34.3% 20.4 49.5%