Given that you have bb.
A bag contains 6 red marbles and 4 blue marbles.
You draw 4 marbles out at random without replacement.
You have 8 6 4 18 marbles each assumed to have a 1 18 probability of being drawn.
There are 8 6 48 ways of drawing blue then red so p 8 6 18 18 4 3 9 9 4 3 9 4 27 0 148148148 or just under 15.
The problem asks for the probability of rr or bb.
Another marble is taken from the bag.
Ralph randomly draws a marble from the bag notes its color and then replaces the marble in the bag.
A bag contains 6 red marbles 7 blue marbles and 6 green marbles if one marble is randomly picked from the bag what is the probability that this is a blue marble.
Asked 01 09 17 a bag contains 4 red marbles and 5 blue marbles whats probability of randomly selecting a blue marble and then without replacing it selecting a red marble.
If a marble is randomly selected from the bag what is the probability that it is blue.
A bag contains 3 red marbles and 4 blue marbles.
The probability is 40 expand a bag contains 6 red marbles and 4 blue marbles.
Asked 11 25 19 a bag contains 7 red marbles 5 white marbles and 6 blue marbles.
There would be a 7 19 or 36 84.
A bag contains 6 red marbles 3 blue marbles and 5 green marbles.
Work out the probability that the two marbles taken from the bag are the same color.