7/15 for blue marbles and 8/14 for the purple marbles this is dependent probability
The probability of picking a green marble from a box that only contains blue marbles is zero.
if you pick one marble at random, the odds are 17/(42+17+27) or 17/86 or about 20%
1/6Because:There is a 4 in 9 chance of picking a red ball the first time and 3 in 8 chance of picking a red ball the second time. The chance of picking two reds as the first two balls is 4/9 x 3/8 or 12/72 or 1/6
A combination problem essentially asks for two answers from different mathematical areas. A simple example could be, "A boy has a bag of marbles. Four marbles are blue. Three marbles are red. Five marbles are white. How many marbles does he have all together? What are the chances of picking a blue marble at random?" The two areas being addressed are simple addition and probability. There are a total of 12 marbles. There is a 1:3 chance of picking a blue marble at random.
soory dude or girl but this was just a joke question. but i hope you find what your looking for. by Michael Johnson
The theoretical probability of randomly picking each color marble is the number of color marbles you have for each color, divided by the total number of marbles. For example, the probability of selecting a red marble is 3/20.
0No blue marbles in the bag.
None, if all the marbles that you have are yellow!
3/10 or 0.3 is the probability of picking a purple marble.
The probability of picking a green marble from a box that only contains blue marbles is zero.
11 marbles total and 6 are blue so probability is 6/11
if you pick one marble at random, the odds are 17/(42+17+27) or 17/86 or about 20%
1/6Because:There is a 4 in 9 chance of picking a red ball the first time and 3 in 8 chance of picking a red ball the second time. The chance of picking two reds as the first two balls is 4/9 x 3/8 or 12/72 or 1/6
1 in 15 chances that the marble will be blue, because there are 15 marbles all together in a bag, and you are only picking one out of it.
1 in 7
A combination problem essentially asks for two answers from different mathematical areas. A simple example could be, "A boy has a bag of marbles. Four marbles are blue. Three marbles are red. Five marbles are white. How many marbles does he have all together? What are the chances of picking a blue marble at random?" The two areas being addressed are simple addition and probability. There are a total of 12 marbles. There is a 1:3 chance of picking a blue marble at random.
soory dude or girl but this was just a joke question. but i hope you find what your looking for. by Michael Johnson