Question

Use the following scenario to answer the question:

A bag contains 5 green marbles, 4 red marbles, 7 blue marbles, and 9 yellow marbles.

If 3 marbles are drawn from the bag one at a time but replaced each time, what is the probability of drawing a green, red and yellow marble in that order?

Answer 1

probability=number of specific outcomes / total number of possible outcomes.

There are a total of 5+4+7+9=25 marbles so the probability of those three specific picks in a row are:

(green/total)(red/total)(yellow/total)

(5/25)(4/25)(9/25)=180/15625

36/3125 ( 1.152% )