What is the probability that both balls are green?

What is the probability that both balls are green?

As the first pick and second pick of the bag are independent events, the probability of picking two green balls is equal to 1/2 * 4/9. By multiplying the denominators together and the numerators together, the probability is found to be 4/18 or 2/9.

What is the probability that a ball drawn at random from a jar?

The probability of selecting a red ball at random from a jar that contains only red, blue and orange balls is 1/4. The probability of selecting a blue ball at random from the same jar is 1/3. If the jar contains 10 orange balls, find the total number in the jar.

What is the probability of picking green marbles?

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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 that a ball is drawn at random from a bowl is red?

If we randomly select a ball from the box: The chance of drawing a red ball is 2/6 = 1/3.

How many balls are there in the bag?

There are 12 balls in a bag. 3 of them are red, 4 of them are green, and 5 of them are blue. We randomly take out 3 balls from the bag at the same time. What is the probability that all three balls are of the same colour?

How many ways can you pick up an R Ball?

Combination ( ( n r)) can only be used when we can differentiate the balls even when they have the same colour, but if they are all of a particular colour they cannot be distinguished and hence the number of ways to pick up r balls from a set of n balls of a particular colour is only 1 and not b i n o m n r, and the probability is r n.

What is the difference between draws in probability with replacement?

The draws in probability with replacement are independent events. For instance, we note from the example above that we were doing the first draw, and there were 3 red and 2 white balls in the box. When we were doing the second draw, again, there were 3 red and 2 white balls in the box. The first draw did not affect the second draw and vice versa.

What is the sum of two dice rolled together?

There are 36 possible outcomes of the additive dice roll. The way to roll a sum of 9 is 6 (and vice versa) and 3 or 5 and 4 (and vice versa). This is possible 4 of the 36 times, giving a probability the sum of the two dice rolled of 4/36 or 1/9.