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Zina [86]
2 years ago
5

What is the probability (draw a blue marble)?

Mathematics
2 answers:
bixtya [17]2 years ago
6 0

Answer:

3/12

Step-by-step explanation:

Theres 3 blue marbles and 12 total marbles (including all the colors).  

Andreas93 [3]2 years ago
6 0

Answer: 1/3

Step-by-step explanation: In this problem, we're asked to find the probability of selecting a blue marble from a bag without looking.

Start with the ratio for the probability

of an event which is shown below.

P(event) <em>= number of favorable outcomes/total number of outcomes</em>

Since there are 3 blue marbles in a bag, the number of favorable outcomes is 3 and since there are 12 marbles in all and it's equally likely that we will choose any of the marbles, the total number of outcomes is 12 so we have 3/12.

Therefore, the probability of choosing a blue marble is 3/12.

However, notice that 3/12 can be reduced to 1/3.

So the final answer for the probability of choosing a blue marble is 1/3.

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