A jar contains 20 marbles.
A jar contains 10 red marbles 4 white.
A jar contains 4 black marbles and 3 red marbles.
Chips are selected randomly one at a time and are not replaced.
A jar contains 4 white chips 5 purple chips and 1 black chip.
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Two marbles are drawn without replacement from a jar containing 4 black and 6 white marbles.
If a marble is drawn from the jar at random what is the probability that this marble is white.
35 let us consider the number of red marbles added be x.
Now the number of red marbles becomes.
If a marble is drawn from the jar at random what is the probability that the marble is white.
10 x number of green marbles remains 30 hence total number of marbles becomes.
And there are still 5 white marbles.
If you pick one marble without looking what is the probability that the marble you pick will be red or blue.
So the probability of white is 5 11.
This problem has been solved.
If you are selecting a random sample of n 3 marbles and the first 2 marbles are both white what is the probability that the third marble will be black.
So the probability of drawing red is 3 12 or 1 4 reduced.
A jar contains 2 pink 6 red and 4 blue marbles.
A jar contains 5 blue marbles 8 red marbles 4 white marbles and 3 purple marbles.
A draw the tree diagram for the experiment.
You randomly choose a marble from a jar.
What is the probability of choosing a blue marble.
If you randomly select a marble from the jar what is the probability that you will get a white marble.
4 red 6 white and 10 blue.
A jar contains 3 red marbles 7 green marbles and 10 white 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.
The jar contains 3 red marbles 10 blue marbles 8 green marbles and 4 yellow marbles.
P white then purple then black independent.
10 x 30 red marbles green marbles i e.
B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3.
Now if you take out one red marble then there are 11 now in the jar.
Asked 3d a jar contains 3 red marbles 7 green marbles and 10 white marbles.
Right you have a jar with 5 8 4 3 marbles 20 marbles then the probability of picking a blue marble is 5 blue 20 total 0 25 similarly the probability of picking a purple marble is 3 purple 20 total 0 15.
Two marbles are drawn without replacement.
You have 12 marbles total.