B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3.
A jar contains red white and blue marbles.
Rr rw wr ww p r 3 4 p w 1 4 since the marbles are drawn with replacements p rr 3 4 3 4 9 16 p rw 3 4 1 4 3 16 p w.
A jar contains 2 red marbles 6 blue marbles 4 white marbles and 12 black marbles.
So the probability of drawing red is 3 12 or 1 4 reduced.
Find the probability of each event.
You then pick.
There are two jars a and b.
What is the ratio of white marbles to all marbles.
Two marbles are drawn without replacement.
And there are still 5 white marbles.
A jar contains 3 white marbles 4 red marbles and 5 blue marbles.
A bag of marbles contains 5 red 3 blue 2 green and 2 yellow marbles.
Write your answer as a fraction in simplest form.
Now if you take out one red marble then there are 11 now in the jar.
The probability to randomly draw a marble is 20c1 the probability to draw a white marble from 10 white marbles is 10c1 thus the probability to draw a white marble out of 20 is.
Jar a contains 7 red and 2 blue marbles while jar b contains 5 red and 4 blue marbles.
If you remove marbles one at a time randomly what is the minimum number that must be removed to be certain that you have at least 2 marbles of each colour.
This random experiment has four possibilities.
So the probability of white is 5 11.
Asked by ana on december 3 2012.
A draw the tree diagram for the experiment.
You roll a fair die if you get a 2 or a 3 you pick a random marble from jar a and put it in jar b.
You have 12 marbles total.
The diagram below shows the contents of a jar from which you select marbles at random.
A jar contains nine blue marbles eight yellow marbles 11 black marbles and 12 red marbles.
Find the probability of choosing the given marbles without replacement.
Suppose r denotes a red marble and w a white marble.
If a marble is drawn from the jar at random what is the probability that the marble will be white.
A jar contains 20 marbles.
A jar contains 3 red marbles 7 green marbles and 10 white marbles.
Suppose you pick a marble at random without looking.
P red blue 2 p blue and blue answer by edwin mccravy 18224 show source.
A jar contains 5 blue marbles 8 red marbles 4 white marbles and 3 purple marbles.