I don't understand this problem can you help?


Comment The question is the same as drawing a Black marble. That's one way to look at it. Another is to draw a gray and then subtract that probability of not drawing a gray. I'll do both. Choose the one that is clearest in your mind. Method One Total number of marbles = 21 + 11 = 32 marbles of both colors. Probability of drawing a black marble =  P(B) = P(~gray) = 11 / 32 Method Two A. Find the probability of drawing a gray marble. There are 21 gray marbles and 32 total P(G) = Number of Gray's / total P(G) = 21 / 32 P(~G) = 1 - 21/32 P(~G) = 32/32 - 21/32 P(~G) = 11/32  <<<< Answer

0 0
Only authorized users can leave an answer!
Can't find the answer?

If you are not satisfied with the answer or you can’t find one, then try to use the search above or find similar answers below.

Find similar answers

More questions