A bag holds red, blue and green marbles. One marble is picked at random. What is the probability it is red?
Answer and explanation
Correct answer: C. 7/13
- Step 1: Calculate the total number of marbles: .
- Step 2: Divide favorable red outcomes by total outcomes: .
Answer
.
Why not the others: The ratio compares red to non-red marbles, representing odds rather than probability.
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