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Sagot :
3/12, or 1/4 is the probability that it is blue.
What is probability?
- Probability = the number of ways of achieving success. the total number of possible outcomes.
- For example, the probability of flipping a coin and it being heads is ½, because there is 1 way of getting a head and the total number of possible outcomes is 2 (a head or tail). We write P(heads) = ½ .
Probability = number of successes / total number of outcomes
Total marbels in bag = 4+ 3 + 5 = 12
A total of 12 marbles are in the bag.
3 blue marbles are in the bag.
Therefore, the probability of picking a blue is 3/12, or 1/4.
Learn more about probability
brainly.com/question/14740947
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