Marbles In A Jar Probability

B find probabilities for p bb p br p rb p ww p at least one red p exactly one red.

Marbles in a jar probability.

Pose questions to the children about each of the jars and the probability of picking certain colored marbles. Find the probability of picking green 4 20 then find the probability of picking blue 5 19. You can arrange the marbles however you like but each marble must be in a jar. A jar contains 24 marbles some are green and others are blue.

At least 1 red a jar contains 30 red marbles 12 yellow marbles 8 green marbles and 5 blue marbles. Two marbles are drawn without replacement. Answer in decimal rounded off to 2 decimal places. 13 is a prime number and 42.

What is the probability that you pick 3 green no red 1 of each at least 1 blue marble if a jar contains 5 blue 3 green and 4 red marbles. So the next time. A jar contains 4 black marbles and 3 red marbles. What is the maximum probability.

For example if the answer is 2 3 the response should be 0 67. P getting a color other than red p 25 55 455 probability of this happening 3 times in a row is found by 455 455 455 094 example 2. Place the possible card in front of the jar. The chance is 2 in 5 but after taking one out the chances change.

The total number of marbles in the second jar is 42 marbles and the total number of blue marbles in the jar is 13. Remember there is one less marble in the jar. If we got a red marble before then the chance of a blue marble next is 2 in 4. Total number of marbles 23 4 27 marbles p green marble of green marbles of marbles total 4 27 0 148 so the probability is 4 27 which is about a 14 8 chance.

If a marble is drawn at random from the jar the probability that it is green is 32. So the probability of getting a blue marble is 13 42.