What is the probability that 2 drawn marbles are 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\%.

What is the probability of not drawing something?

In a standard deck of 52 cards with Jokers excluded, there are 13 Clubs and 39 non-Clubs. Thus, the probability of not drawing a Club (i.e., drawing a non-Club) on any single draw is 39/52 = ¾.

What is the probability that both are red?

In conclusion, the probability that both of the balls are red is 1/10.

What is the probability that the marble is red?

The probability of drawing a blue marble is now = 1/4. The probability of drawing a red marble = 2/5.

What is the probability that all marbles are red?

The probability the first marble is red is 9/23, leaving 22 total marbles and 8 red ones. The probability the second marble is red is 8/22, leaving 21 total marbles and 7 red ones. The probability the third marble is red is 7/21, leaving 20 total marbles and 6 red ones. The probability the fourth marble is red is 6/20.

How many marbles are drawn without replacement from the jar?

Two marbles are drawn without replacement from a jar containing 4 black and 6 white marbles. a) Draw the tree diagram for the experiment. A bag contains 5 blue balls and 4 red balls. A ball is picked and not replaced.

What is an example of probability without replacement?

Probability Without Replacement. 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. The sample space for the second event is then 19 marbles instead of 20 marbles. This is called probability without replacement or dependent probability.

What is the probability of a draw with two draws?

This is because you took a marble out and didn’t replace it. Those probabilities are 9 59, 19 59, and 29 59. The probability is given by probability of A & B which equals A*B of the two draws, and by probability of A or B or C which equals A+B+C (Read up on Mutually Exclusive and Dependent events).

How many marbles are in a bag of marbles?

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. The sample space for the second event is then 19 marbles instead of 20 marbles.