B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3.
A bag contains 8 red marbles 6 blue marbles.
We will assume that only two marbles are drawn from the bag and hence there are two cases.
You draw 3 marbles out at random without replacement.
These are clearly all yellow.
The probability that none of the marbles are red is.
So i could pick that green marble or that green marble.
The first marble is not returned in the bag before drawing the second.
Two marbles are drawn without replacement.
And then there s one blue marble in the bag.
There s two red marbles in the bag.
There s one blue marble.
If three marbles are drawn out of the bag what is the probability to the nearest 1000th that all three marbles drawn will be blue.
There s two green marbles in the bag.
Two marbles are drawn without replacement from a jar containing 4 black and 6 white marbles.
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.
So i could pick that red marble or that red marble.
Randomly choose two marbles one at a time and without replacement.
A jar contains 4 black marbles and 3 red marbles.
A bag contains 9 red marbles 8 white marbles and 6 blue marbles.
Find p red and blue.
So this is all the possible outcomes.
A bag contains 8 red marbles 6 blue marbles and 3 green marbles.
A bag contains 8 blue marbles 6 red marbles and 4 green marbles.
A bag contains 8 red marbles 4 white marbles and 5 blue marbles.
A the probability that the first marble is red and the second is white.
A draw the tree diagram for the experiment.
The first marble is returned in the bag before drawing the second.
C the probability that the second marble is blue.
Given that you have bb.
What is the probability of selecting a red marble replacing it in the bag and then selecting a green marble.
Find the following probabilities and round to 4 decimal places a.
A bag contains 8 red marbles 7 white marbles and 7 blue marbles.