This question illustrates conditional probability by removing a group (blue balls).
\( \begin{array}{l}\text{A box contains 3 red, 2 green, and 5 blue balls.} \\ \text{A ball is drawn at random.} \\ \text{What is the probability of drawing a red ball, given that the ball drawn is not blue?}\end{array} \)
Choose one option:
Subtract excluded items from the total before calculating probability.
Only consider items that meet the condition (not blue) and compute probability.
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