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What is the probability of pulling out a red marble then a blue marble without replacing the red marble the bag contains 3 red marbles 2 blue marbles and 5 green marbles?
Wiki User
∙ 14y ago
1 out of 15
Probab. = Prob. of red x Prob. of blue
Probab. = (3/10)x(2/9) = 5/90 = 1/15
Wiki User
∙ 14y ago
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A bag contains 5 red marbles 3 blue marbles and 2 green marbles What is the probability of pulling out two different color marbles?
5/10
A bag contains 11 blue marbles 10 purple marbles 17 red marbles 15 green marbles and 3 yellow marbles What is the probability of pulling out a blue or a red marble?
There are 11+10+17+15+3=56 marbles in total. Of those marbles, 11 are blue and 17 are red, so there are 11+17=28 blue and red marbles. Therefore the probability of choosing a blue or red marble is 28/56=.5, or 50%.
If you have a black bag with 4 red marbles 6 green marbles 4 blue marbles and 10 white marbles what is the probability of pulling out a white marble from the bag?
Probability = number_of_white_marbles / total_number_of_marbles = 10 / (4 + 6 + 4 + 10) = 10 / 24 = 5/12 ~= 0.42
Suppose there are three white marbles and three black marbles in a bag and you want to remove two marbles What is the probability that you will select a white marble and then a black marble Express?
3/6 * 3/5 = 6/30 or 1/5 so you have a 20% chance of pulling a white and then black marble.
If there are 3 red 4 blue and 5 yellow marbles what is the probability of pulling a red or blue marble vs the probability of pulling a red marble the first time and a blue marble the second time?
Pr(Red or Blue) = 0.5833...Pr(R on first pull and Blue on second pull) = 0.0533...
A bag contains 5 red marbles 3 blue marbles and 2 green marbles What is the probability of pulling out two different color marbles?
5/10
A jar contains 22 yellow marbles 26 green marbles 17 red marbles and 20 purple marbles A marble is drawn at random what is the probability of not pulling out a purple marble?
probability of pulling out a purple marble = 20/85probability of NOT pulling out a purple marble = 1 - 20/85 = 65/85 = 13/17
Is pulling marbles out of a bag experimental probability?
yes
What is the probability of pulling of pulling out a blue marble returning it to the jar and then pulling out a green marble?
The probability is B*G/(B+G+R)^2where B = number of Blue marbles G = number of Green marbles and R = number of marbles of other colours.
In a bag of 6 red marbles 14 green marbles what is the probability of pulling out a red or green?
1
A bag contains 11 blue marbles 10 purple marbles 17 red marbles 15 green marbles and 3 yellow marbles What is the probability of pulling out a blue or a red marble?
There are 11+10+17+15+3=56 marbles in total. Of those marbles, 11 are blue and 17 are red, so there are 11+17=28 blue and red marbles. Therefore the probability of choosing a blue or red marble is 28/56=.5, or 50%.
In a bag containing 6 purple marbles 19 green marbles 5 blue marbles 19 yellow marbles and 17 red marbles what is the probability of pulling out a yellow marble?
Total number of marbles in the bag = 6 + 19 + 5 + 19 + 17 = 66Number of yellow ones = 19If drawing perfectly randomly, then the probability of pulling a yellow one = 19/66 = 28.8% (rounded)
What is the probability of pulling a red marbles out of a bag containing 16 red marbles 10 green marbles 14 blue marbles and 10 yellow marbles?
If you pull 35 marbles without replacement, the answer is 1: the event is a certainty. If you pull only one marble, at random, the probability is 16/50 = 8/25.
If you have a black bag with 4 red marbles 6 green marbles 4 blue marbles and 10 white marbles what is the probability of pulling out a white marble from the bag?
Probability = number_of_white_marbles / total_number_of_marbles = 10 / (4 + 6 + 4 + 10) = 10 / 24 = 5/12 ~= 0.42
A bag contains 3 red marbles 2 blue marbles and 5 green marbles What is the probability of selecting a red marble without replacing it in the bag and then selecting a green marble?
Total marbles in the bag = 10Number of red ones = 3Probability of pulling a red one on the first draw = 3/10 = 0.3Total marbles remaining after the first draw = 9Number of green ones = 5Probability of pulling a green one after a red one has been withdrawn = 5/9Probability of both outcomes = (3/10) x (5/9) = (15/90) = 1/6 = (16 and 2/3) percent.
What is the probability of rolling a number greater than 4 and then pulling a red marble out of the bag without looking?
The probability of rolling a number greater than 4 is 2/6, that is, 1/3. For the probability of pulling out a red marble, more data has to be known. Just put the number of red marbles in the numerator, the total number of marbles in the denominator. Finally, multiply the two probabilities.
What is the equation used to determine probability?
Number of possibilities for one category / Total of all possibilities. For example, if I had a bag of marbles where there are three white marbles and two black marbles. The probability of pulling out a white marble is how many white marbles are in the bag which is: three. But the total of things you can draw out of the bag can either be one of the three white marbles or one of the two black marbles. 3 white marbles+ 2 Black marbles= five marbles. Possibility is 3/5 for drawing a white marble.
