## What is the probability of selecting a red or blue marble?

The probability of drawing a red marble = 2/5. The probability of drawing a blue marble = 1/5.

## What is the probability of picking blue marbles?

When you draw the first marble, there are 10 marbles in the jar of which 6 are blue, so your probability of drawing a blue one is 6/10 (60 percent) or 3/5.

## What is the probability of choosing a red marble from bag a then a blue marble from bag B?

The probability of the first marble being red is 943. After returning this marble to the bag, the probability of the second marble being blue is 1143. So the probability picking a red marble, and then a blue marble is 943⋅1143≈0.054.

## What is the probability of randomly choosing a red marble?

The probability of randomly choosing a red marble is 4 9. There are 20 red marbles in the bag and each is equally likely to be chosen.

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## What is the probability that the marble will be red or green?

The probability that the marble is either red or green is 0.8.

## What is the probability of getting two red balls in 2 trials?

On your first pick, the probability is 11/16 that you choose a red ball. On the second pick, the probability is 10/15 that you choose a red ball. So 11/16*10/15 = 110/240 = 45.83% chance of picking two red balls in a row.

## What is the probability of selecting two red marbles without replacement?

On the first, you have 10/16 chances to draw a red. Supposing this red is not replaced, the chance of drawing a second red will be 9/15; therefore, the probability of A is (10/16) * (9/15) = 0.375.

## What is the probability of choosing a green marble from a jar?

The probability of selecting a green marble at random from a jar that contains only green, white and yellow marbles is 0.

## What is the probability of getting two marbles of the same color?

You can cross check with what I presented here and you will find they are the same. Which gives a probability of about 38%.