Without Replacement Probability Math
If we randomly choose a marble what is the probability of getting a green marble.
Without replacement probability math. Remember that the objects are not replaced step 2. There is only one head on a coin and there are two possible outcomes either heads or tails. Draw the probability tree diagram and write the probability of each branch. For example if we pick 2 marbles from a bag there are different possibilities of what we could do.
Probability p 1 1 2 or 0 5 or 50. The probabilities of the second pick will be different as there is one less marble in the bag. Then we take a second a second marble without having replaced the first one. Multiply along the branches and add vertically to find the probability of the outcome.
Probability with replacement we take a marble put it back into the bag and pick another one. Look for all the available paths or branches of a particular outcome. With replacement independent events p two reds 3 6 3 6 without replacement dependent events p two reds 3 6. Probability without replacement we take a marble.
Probability without replacement let s assume we have a jar with 10 green and 90 white marbles.