The answer depends on how many marbles are picked and on whether or not they are returned to the jar before picking the next one. Since you have not bothered to provide any information on either of these aspects, I cannot provide a more useful answer.
The probability of picking a green marble from a box that only contains blue marbles is zero.
The probability, in one draw, is 6/20 or 30%
Probability of drawing a red marble = 4/16 = 1/4 Probability of drawing not a red marble = 1 - 1/4 = 3/4
Well, honey, there are 11 marbles in total, and 4 of them are blue. So, if you don't want a blue marble, that leaves you with 7 marbles to choose from. The probability of picking a marble that is not blue is 7/11. Hope that helps, sugar!
if you pick one marble at random, the odds are 17/(42+17+27) or 17/86 or about 20%
The probability of picking a green marble from a box that only contains blue marbles is zero.
There is a one in 2 chance of getting a green marble.
Well, honey, if you're reaching into that bag three times and each time you're pulling out a yellow marble and then putting it back in, the probability of picking a yellow marble each time is 8/21. Multiply that by itself three times because you're picking three marbles, and you get a probability of 512/9261. So, good luck with those yellow marbles, darlin'!
The probability, in one draw, is 6/20 or 30%
Probability of drawing a red marble = 4/16 = 1/4 Probability of drawing not a red marble = 1 - 1/4 = 3/4
Well, honey, there are 11 marbles in total, and 4 of them are blue. So, if you don't want a blue marble, that leaves you with 7 marbles to choose from. The probability of picking a marble that is not blue is 7/11. Hope that helps, sugar!
if you pick one marble at random, the odds are 17/(42+17+27) or 17/86 or about 20%
1/2
25/50 gives the probability of selecting a blue marble
0No blue marbles in the bag.
your probability would be 13/13. you would have a 100 percent chance of getting a green marble
5:16