A bag of marbles contains 6 blue marbles, 2 yellow marbles, 4 red marbles, and 1 green marble. What is the probability of reaching into the bag and selecting a yellow marble?
Answer
A
1 sixth
B
1 over 13
C
2 sixths
D
2 over 13
Explanation
There are 6 + 2 + 4 + 1 = 13 marbles altogether, and 2 are yellow. The probability of selecting a yellow marble is 2 out of 13, so the correct choice is 2 over 13.
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