A bag contains some red some white and some blue marbles. The probability of drawing a redarble is 1/3 and the probability of drawing a white marble is 1/3. What os the proba of drawing a blue marble?

Question

directrix · Answer

If there are only the 3 colors in the box, then the probability of R, W, or B = 1.

So, 1 - 1/3 -1/3 has to give 1/3 for the probability of blue.

That is my thinking.

anonymous · Answer

Ah okay thanks for the thinking, I kinda suck at probability

directrix · Answer

The phrasing of probability problems is notoriously bad. A solver has to try to think what the question creator had in mind. lol

anonymous · Answer

can you help me on this one? Lol genius!

directrix · Answer

Close this thread and post in a new thread. I'll try to help.