Solve the word problem.There are 8 red, 5 blue, and 2 green marbles in a hat. Without looking, what is the probability of picking a blue marble?
To find the probability of picking a blue marble, we need to know the total number of marbles in the hat and the number of blue marbles
To find the probability of picking a blue marble, we need to know the total number of marbles in the hat and the number of blue marbles.
The total number of marbles is the sum of the red, blue, and green marbles: 8 + 5 + 2 = 15.
The number of blue marbles is given in the problem as 5.
Therefore, the probability of picking a blue marble is the number of blue marbles divided by the total number of marbles: 5/15.
Simplifying the fraction, we have: 1/3.
So, the probability of picking a blue marble is 1/3.
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