Odds Of Picking A Red Marble

Find the probability of choosing 2 white marbles in a row if the marbles are.

Odds of picking a red marble. Find the probability of choosing a blue marble then a red marble if the marbles are not replaced. 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. That you never draw the red marble twice in a row is the probability that you don t on the first iteration times the probability that after that you don t on the second iteration times the probability that after that you don t on the third iteration and so forth. A jar contains 4 blue marbles 5 red marbles and 11 white marbles.

1 3 1 3 1 3 2 because a b c a c b c p two red marbles 1 2 3 2. On your second pull since we are not replacing marbles there s a 3 4 chance that you pick a b. For example if the probability of picking a red marble from a jar that contains 4 red marbles and 6 blue marbles is 4 10 or 2 5 then the probability of not picking a red marble is equal to 1 4 10 6 10 or 3 5 which is also the probability of picking a blue marble. This gives us the probability of picking a red marble as 5 15 or 1 3.

There are 15 marbles in the bag. Choosing a red marble is our event and the number of outcomes is the total number of marbles in the jar 20. If a marble is drawn from the jar at random what is the probability that this marble is red. You pick a white marble followed by a blue marble.

The probability of picking a yellow marble. Because you replace the marble therefore making the probability the same each time and as it s a logical and operation you multiply the probabilities like this. And so this is sometimes the event in question right over here is picking the yellow marble. Initially there is a 2 5 chance of picking a white marble.

Let s break it down into cases.