Two Marbles Are Drawn From A Bag Containing

Many times the words make them more complicated than they need to.

Two marbles are drawn from a bag containing.

Then a second marble is drawn. The first marble drawn is not replaced. So it s very simple ideas. The sample space for the second event is then 19 marbles instead of 20 marbles.

If i say what s the probability of picking a yellow marble. Well 3 4 7 so you have two different drawings which removes one marble if you draw and then you have 6. Two marbles are randomly drawn without replacement. So first you have 3 7 green and 4 7 to draw black marble.

Well there s 8 different marbles i could pick. One marble is drawn and not replaced. Two marbles are randomly drawn from a bag containing 5 red marbles 3 blue marbles and 2 orange marbles. The first marble is blue and is not replaced.

This is called probability without replacement or dependent probability. Two marbles are drawn without replacement from a bag containing 3 green 6 yellow and 4 red marbles. So there s 3 right over here so number that satisfy the event or the constraint right over here. You re more likely to pull a black marble first then after getting a black marble you have a 50 50 chance of pulling either back or green.

Find the probability of drawing a red marble then another red marble. 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. Two marbles are drawn at random. Two marbles are randomly drawn from a bag containing 3 purple 1 blue and 1 yellow marble.

A bag contains 2 white marbles and 7 purple marbles. A bag contains 4 red marbles and 5 blue marbles. Two marbles are drawn without replacement from a bag containing 3 green 6 yellow and 4 red marbles. What is the probability that the marbles are of di 64256 erent colors.

After then you have either a 3 7 green and 3 7 black chance or a 2 7 green and 4 7 black chance to pull a color. Find the probability of drawing a second marble that is purple.