Probability That Both Marbles Are The Same Color

C notice in b that we found the prob.

Probability that both marbles are the same color. A person draws one marble from each bag. Four marbles are drawn from the box at the same time. A marble is selected at random from these 15 marbles its color is noted and it is replaced. A bag contains 9 red marbles 8 white marbles and 6 blue marbles.

Both independent and conditional probability are covered. If it was the probability of picking a red ball etc the second time will be the same as the first i e. The first boy picks before her. One bag contains three white marbles and five black marbles and a second bag contains four white marbles and six black marbles.

B what is the p read more. C the probability that the second marble is blue. What is probability without replacement or dependent probability. B the probability that both are the same color.

B what is the probability that both marbles selected are the same color. For example a marble may be taken from a bag with 20 marbles and then a second marble is taken without replacing the first marble. This video shows examples of using probability trees to work out the overall probability of a series of events are shown. If she is the 3rd person picking a marble i e.

Of not picking 2 matching marbles. To find the prob. A what is the probability that neither marble selected is red. A second marble is selected from the 15 and its color is noted.

Randomly choose two marbles one at a time and without replacement. In some experiments the sample space may change for the different events. A box contains 8 green 9 red 5 yellow and 7 blue marbles. A the probability that the first marble is red and the second is white.

A what is the probability that all four marbles are the same color. If she is the 2nd person picking a marble 2. Of picking any 2 marbles is 1 we can find the prob. Of picking both marbles of the same color we add 1 15 and 2 5 giving 7 15.