Probability Of At Least 3 Red Marbles

Find the probability of pulling a yellow marble from a bag with 3 yellow 2 red 2 green and 1 blue i m assuming marbles.

Probability of at least 3 red marbles. A jar contains 4 black marbles and 3 red marbles. If the first marble is red that leaves 4 red marbles and 3 black marbles in the bag. Another marble is taken from the bag. A marble is taken at random and replaced.

Therefore the probability of them both being red is 4 7 times 3 6 or 12 42. So they say the probability i ll just say p for probability. B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3. A a probability tree diagram to show all the possible outcomes.

There are 55 marbles 25 of which are not red p getting a color other than red p 25 55 455 probability of this happening 3 times in a row is. Two marbles are drawn without replacement. Since the probability of drawing a red marble from one bag is independent of the colour of the marble drawn from the other bag the probability is 3 4 3 4 9 16. We can go one step further and see what happens when we pick a second marble.

The probability of picking a yellow marble. 3 however you also gave the probability of drawing two blue marbles among an additional two drawn given 3 red were previously removed. There is a 2 5 chance of pulling out a blue marble and a 3 5 chance for red. 1 12 42 or 30 42 or 5 7.

Calculate the probability of getting. Total number of marbles in the bag is 3 4 7. Bag a contains 10 marbles of which 2 are red and 8 are black. I at least one blue.

The complement of this is the probability that both marbles are red. Iii two of the same color. A draw the tree diagram for the experiment. 2 you gave the probability of drawing exactly three red marbles among three marbles drawn not as you claimed the probability of drawing at least three red marbles among five.

Hence the probability of drawing at least one green marble is 1 9 16 7 16. Probability examples a jar contains 30 red marbles 12 yellow marbles 8 green marbles and 5 blue marbles what is the probability that you draw and replace marbles 3 times and you get no red marbles. Work out the probability that the two marbles taken from the bag are the same color. The problem asks for the probability of rr or bb.

Two red marbles 3 blue marbles 4 green marbles and 1 mauve marble 10 marbles 1st draw odds of a green marble are 4 10 2nd draw remaining 6 10 odds 4 9 so odds of drawinf at least 1 green marble are. Ii one red and one blue. Two marbles are drawn without replacement from a jar containing 4 black and 6 white marbles. The probability that the next marble drawn is red is 4 7.

If a blue marble was selected first there is now a 1 4 chance of getting a blue marble and a 3 4 chance of getting a red marble. And so this is sometimes the event in question right over here is picking the yellow marble.