Question

Suppose you have a box with 3 blue marbles, 2 red marbles, and 4 yellow marbles. You are going to pull out one marble, record its color, put it back in the box and draw another marble. What is the probability of pulling out a red marble followed by a blue marble? Be sure to reduce your answers. a. 6/81 = 2/27
b. 6/18 = 1/3
c. 5/9
d. 5/18

Answer 1

red = 2/9

blue = 3/9 = 1/3

 multiply together

2/9 x 1/3 = 2/27 so answer is a