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When an urn contains 12 red balls 153 blue balls 2 black balls 47 white balls and no green balls What is the probability you do not draw any ball at all?
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∙ 14y ago
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∙ 14y ago
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A bag contain 4 green 6 black 7 white balls a ball is drawn at random what is the probability that it is a green or a black ball?
This is a law of addition probability which states that the probability of A or B equals the probability of A plus the probability of B minus the probability of A and B. Written in mathematical terms, the equation is: P(AorB) = P(A) + P(B) - P(AnB) where P(AnB) = 0 (since you can not pull out a green and black ball at the same time). Let P(A) = Probability of drawing the green ball & let P(B) = Probability of drawing the black ball. Total outcomes is 17. So, P(A) = 4/17 & P(B) = 6/17. Therefore P(green or black) = 4/17 + 6/17 = 10/17.
If you have 4 green balls 2 red balls and 1 blue what is probability of getting a green?
It is 1/7 if a ball is selected at random.
If A jar contains 5 yellow marbles 16 green marbles and 8 black marbles If one marble is selected at random what is the probability that it is not green?
1 in 52
What is the probability of picking a red ball out of a bag containing 3 red balls 4 blue balls and 6 green balls?
3 out of 13 or 3/13
If there are 4 balls in a bag one is blue and the rest are red what is the probability to pull out a green ball?
zero
What is the probability of choosing 3 red balls and 2 black balls out of a bag which contains 5 red balls 2 green balls and 4 black balls?
If you draw enough balls, without replacement, the probability is 1.The answer depends onhow many balls are drawn, andwhether or not they are replaced.Unfortunately, your question gives no information on these matters.
What is the probability of pulling a black ball and then a green ball if there are 3 red balls 3 green balls 3 blue balls and 3 black balls?
3/12*3/11 = 9/132, or 6.818%.
A bag containing 4 green 6 black 7 white balls a ball is drawn at randomly probability of finding 2 red balls?
The probability is zero, because there are no red balls in the bag.
A bag contain 4 green 6 black 7 white balls a ball is drawn at random what is the probability that it is a green or a black ball?
This is a law of addition probability which states that the probability of A or B equals the probability of A plus the probability of B minus the probability of A and B. Written in mathematical terms, the equation is: P(AorB) = P(A) + P(B) - P(AnB) where P(AnB) = 0 (since you can not pull out a green and black ball at the same time). Let P(A) = Probability of drawing the green ball & let P(B) = Probability of drawing the black ball. Total outcomes is 17. So, P(A) = 4/17 & P(B) = 6/17. Therefore P(green or black) = 4/17 + 6/17 = 10/17.
If you have 4 green balls 2 red balls and 1 blue what is probability of getting a green?
It is 1/7 if a ball is selected at random.
If A jar contains 5 yellow marbles 16 green marbles and 8 black marbles If one marble is selected at random what is the probability that it is not green?
1 in 52
If a bag contains 4 black 6 green and 2 yellow marbles and one marble is randomly drawn what is the probability that it is not black?
There are 8 marbles that aren't black, out of a total of 12 marbles, so the probability is 8/12 or 2/3.
A bag contains 3 red balls and 2 blue balls a ball is taken at random from the bag and then put back what is the probability that both balls are red?
3c2+2c2+3c1 2c1 --------------- 7c2. I have done it this way. 3C2 means that the both balls would be green 2C2 both would be red and 3C1 and 2C1 because both the balls can be red and green.
What is the probability of drawing a white ball out of a bag with 2 green 3 white and 5 black?
The probability of a simple event is the number of ways to succeed over the total possibilities. So, there are three white balls, and ten balls total. So: P(white) = 3/10
What is the probability of having 2 red balls when chosen in random from a container has 2 red balls 4 green balls and 2 yellow balls?
1/4 chance
A pencil case contains pencils of colours 3 black 1 green and 1 blue one pencil is selected without looking what is the probability?
There is a 60% chance you will choose a black, 20% chance of a green, and 20% chance of a blue.
What is the probability of picking a red ball out of a bag containing 3 red balls 4 blue balls and 6 green balls?
3 out of 13 or 3/13
