Question

I'd like to know if I'm understanding how to set up the problem.

Mrs. Vasquez selects a marble from a jar containing 6 red marbles and 2 green marbles, and does not replace it. She then selects a second marble and does not replace it. She then selects a third marble. What is the probability that all three marbles will be red?

I have my problem set up as: 1/8 * 6/6=

Is this correct? Thank you.

Answer 1

Not quite
1st draw: 6 red of 8
2nd draw: 5 red of 7
...
so, the probability of all 3 reds is

6/8 * 5/7 * 4/6

Answer 2

I'll get it one day. Appreciate the help.