There Are Seven Black Marbles And Nine White Marbles

There s one blue marble.

There are seven black marbles and nine white marbles.

Give your answer as a decimal number with 3 decimal places. There s two green marbles in the bag. A jar contains 4 black marbles and 3 red marbles. Call it the second marble.

A box contains 8 red marbles 8 green marbles and 10 black marbles. 9 blue marbles 8 green marbles 4 red marbles 8 white marbles and 6 yellow marbles. Take out a marble. Two marbles are drawn without replacement from a jar containing 4 black and 6 white marbles.

What is the probability that one of each color is selected. B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3. B how many samples contain exactly 4 red marbles and exactly 3 black marbles. A draw the tree diagram for the experiment.

One of them is removed so now there are 17 marbles. There are seven black marbles and nine white marbles in a bag. This is our denominator. What is the approximate probability of drawing two black marbles and then a white marble without replacement.

C how many samples contain exactly 7 red marbles or exactly 6 green marbles. So i could pick that green marble or that green marble. So this is all the possible outcomes. Fancy word for just a simple idea that the sample.

If one marble is selected determine the probability that it is green answer by stanbon 75887 show source. A how many samples contain at least 1 red marble. Trivially then the answer is frac 1 3 since there is one white. And then there s one blue marble in the bag.

A bag contains 8 red marbles 5 blue marbles 8 yellow marbles and 6 green marbles. Two marbles are drawn without replacement. P r r 9 20 9 20 81 400 2025. All of the original white marbles are still in the bag so there is a 4 out of 17 or 4 17 chance that the next marble taken out of the bag will be white.

Suppose that an urn contains 4 green marbles 7 black marbles and 9 white marbles. A sample of 12 marbles is to be picked from the box. Three marbles are selected at random and without replacement. There are 35 marbles in a bag.

There are 18 marbles in total. There are a number of ways of approaching this problem but the easiest solution is to realize that it doesn t matter what order you took the marbles out in.