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.
Dependent
The probability is 0.3692
7/15 for blue marbles and 8/14 for the purple marbles this is dependent probability
5 becaese you will get blue
3/7*3/7= 9/49
Dependent
The probability is 0.3692
7/15 for blue marbles and 8/14 for the purple marbles this is dependent probability
5 becaese you will get blue
1 in 1024 :-)
The probability is 1/9.
3/7*3/7= 9/49
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.
1 out of 15 Probab. = Prob. of red x Prob. of blue Probab. = (3/10)x(2/9) = 5/90 = 1/15
There is a one in 2 chance of getting a green marble.
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.
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.