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There are 3 red 2 blue and 4 green marbles in a bagwhat is the probrobility of getting a red then a green without replacing the first one picked?
Wiki User
∙ 14y ago
Your sample space --> 3 + 2 + 4 = 9
For the first draw, P(Red) = 3/9
For the subsequent draw, your sample space is reduced by 1.
So P(Green|Red) is 4/8.
To get the total of this event happening, you times 3/9 with 4/8 which is 1/6.
Wiki User
∙ 14y ago
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Is drawing marbles from a bag without replacing them dependent or independent?
Dependent
A bag contains 16 red marbles and 10 blue marbles If two marbles are chosen at random what is the probability of getting two red marbles?
The probability is 0.3692
A bag has 7 blue marbles and 8 purple marbles.What is the probability of picking a blue marble then a purple marble without replacing?
7/15 for blue marbles and 8/14 for the purple marbles this is dependent probability
If you have 5 blue marbles 3 red marbles and 7 yellow marbles what is the probability of not getting a yellow if you draw one of them out of a sack?
5 becaese you will get blue
A bag contains 4 red marbles and 3 black marbles You dram one marble look at it and put it back Then you draw one marble again What are your chances of getting 2 black marbles?
3/7*3/7= 9/49
Is drawing marbles from a bag without replacing them dependent or independent?
Dependent
A bag contains 16 red marbles and 10 blue marbles If two marbles are chosen at random what is the probability of getting two red marbles?
The probability is 0.3692
A bag has 7 blue marbles and 8 purple marbles.What is the probability of picking a blue marble then a purple marble without replacing?
7/15 for blue marbles and 8/14 for the purple marbles this is dependent probability
If you have 5 blue marbles 3 red marbles and 7 yellow marbles what is the probability of not getting a yellow if you draw one of them out of a sack?
5 becaese you will get blue
What is the chance of people all getting a blue marble out of a box with 5 blue marbles and 5 black marbles?
1 in 1024 :-)
If you pick two marbles without replacing the first (g4 r2 y3) what is P(red then green)?
The probability is 1/9.
A bag contains 4 red marbles and 3 black marbles You dram one marble look at it and put it back Then you draw one marble again What are your chances of getting 2 black marbles?
3/7*3/7= 9/49
What game has a clear plastic tower and has plastic sticks with marbles on them and you either try to get or prevent the marbles to fall I forget which?
Kerplunk ! I love that game. and you try to get as many sticks out without getting marbles and if you do try not to get to much because if you have the most at the end of the game you lose.
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?
1 out of 15 Probab. = Prob. of red x Prob. of blue Probab. = (3/10)x(2/9) = 5/90 = 1/15
A bag contains five green marbles and four red marbles what is the odds of in favor picking a green marble on the first selection?
There is a one in 2 chance of getting a green marble.
If a box contains 4 red marbles seven white and 5 blue and two marbles are drawn one at a time with replacement What is the probability that both marbles are white?
Since the box contains 16 marbles, seven of them white, then the probability of drawing one white marble is 7/16. If you replace the marble and draw again, the probability of drawing another white marble is still 7/16. The net probability of drawing two white marbles, while replacing the first, is 49/256.
What is a probalitlity for math?
A probability is saying something like, "What is the probability of getting a red marble if there are 20 red marbles in a bag and fifty blue marbles?" The answer would be 20/70 or 2/7 because there are seventy marbles in the bag but you only want those twenty.
