A bag contains 6 marbles, 2 white marbles, and 1 gray marbles. You randomly pick out a marble,record it's color and pot it back in the bag. How many white or gray marbles to you expect to get.
There is something missing in the question. If you mean, what is the probability oh drawing aa white or a gray marble then it is:
For the white marbles 2 out of a total of 9 or 2÷9.
For gray it is 1÷9.
