Posted by Itreek on Tuesday, April 19, 2011 at 7:01pm.
In a jar there are 18 marbles. There are 3 red marbles, 9 green marbles, 6 blue marbles. What is the probability of drawing (with replacement) a red marble and then a green marble? Please write the answer in fraction form? Show how you did all the work.

MathGeometry  hannah, Tuesday, April 19, 2011 at 10:50pm
dont you just add all of it and then you put that number on the bottom and then you have the red and green and then you put it on top of the fraction and then multiply and simplify

MathGeometry  PsyDAG, Wednesday, April 20, 2011 at 12:02pm
Probability that all events occur is found by multiplying the individual probabilities.
3/18 * 9/16 = ?