Compound Probability Marbles

Find the probability of drawing a second marble that is purple.

Compound probability marbles.

Without replacement the total number of outcomes decreases after each drawing. Find a local tutor in you area now. This video is unavailable. We first find the probability that the first marble is red.

Get homework help now. Preview this quiz on quizizz. In the context of probability theory we use set notation to specify compound events. So the probability of getting a red marble now is 2 9.

1 a bag contains six red marbles and eight blue marbles. The probability of a compound event is the ratio of favorable outcomes to total outcomes in the sample space for which the compound events happen. Both marbles are red. The probability of the second outcome is still with six marbles.

The probability of compound events without replacement in the second video we are going to work with the probability of compound events without replacement. That is simply 3 10 since there are two red marbles and ten in all. Remember that you can use sample spaces tree diagrams tables and. This video explains how to find the compound probability of two dependent events.

After you get a red marble and don t put it back the bag now has one red marble less. Find the probability of drawing a blue marble and then drawing a yellow marble. Free online tutoring on thursday nights. You randomly pick a marble and then pick a second marble without returning the marbles to the bag.

2 a bag contains seven red. Two marbles are randomly drawn from a bag containing 3 purple 1 blue and 1 yellow marble. Set theory a set broadly defined is a collection of objects. A bowl contains 12 red marbles 5 blue marbles and 13 yellow marbles.

The first marble is blue and is not replaced. The total number of marbles in the bowl is 12 5 13 30. Find the probability of the first marble being green and the second marble being yellow. Let a blue marble chosen 1st and b yellow marble chosen 2nd.