A bag contains 8 red balls numbered 1-8 and 11 white balls numbered 9-19. If a ball is drawn, what is the probability that the ball is red R and even-numbered E? ​

Question

Question 6 options: a) 4/19 b) 1/2 c) 4/11 d) 8/19 e) 11/19

Answer 1

R_n = red ball with n = 1 through 8

W_m = white ball with m = 9 through 19

E = even numbers (2, 4, 6, 8, 10, 12, 14, 16, 18)

P(R and E) = P(R)*P(E) = (8/19)*(9/19) = 72/361 = 0.1994

The probability of drawing a red ball and an even number is 0.1994.