A jar has 5 marbles, 1 of each of the colors red, white, blue, green, and yellow. If 4 marbles are removed from the jar, what is the probability that the yellow marble was removed?

Question

anonymous · Answer

i remember this, yu gotta use factorial

anonymous · Answer

what is the probability that the marble is NOT removed.  If you know that then you can subtract that from 1 to get the answer you seek

anonymous · Answer

first is not yellow $\frac{4}{5}$ second not yellow given first isn't $\frac{3}{4}$ this is not yellow given the first two is $\frac{2}{3}$ and finally 4th is not yellow is $\frac{1}{2}$
multiply these together, subtract from 1

anonymous · Answer

@jon.stromer.galley thx for helping too!

anonymous · Answer

@satellite73 problem solved thank you!