3 out of 13 or 3/13
That depends. Picking a red ball is 4/9 Picking a green ball is 3/9 = 1/3 Picking a yellow ball is 2/9. Picking a ball is 9/9 or 1 because you'll always take one.
It is 1/7 if a ball is selected at random.
There are 16 marbles total and 7 green ones, so the probability is 7/16.
2
zero
That depends. Picking a red ball is 4/9 Picking a green ball is 3/9 = 1/3 Picking a yellow ball is 2/9. Picking a ball is 9/9 or 1 because you'll always take one.
The probability is zero, because there are no red balls in the bag.
2/7 = 28.57%
11/19 is the probability 11 over 19 if you cant read it
The answer depends on how many are picked,whether they are returned after picking and whether the picking is done at random. In a single random selection the probability is 17/25.
It is 1/7 if a ball is selected at random.
The probability of picking a green marble from a box that only contains blue marbles is zero.
3/12*3/11 = 9/132, or 6.818%.
There are 16 marbles total and 7 green ones, so the probability is 7/16.
1/4 chance
2
If you draw enough balls, without replacement, the probability is 1.The answer depends onhow many balls are drawn, andwhether or not they are replaced.Unfortunately, your question gives no information on these matters.