This question shows conditional probability by removing an excluded group from the total.
\( \begin{array}{l}\text{A bag contains 4 green balls, 3 yellow balls, and 5 blue balls.} \\ \text{A ball is drawn at random.} \\ \text{What is the probability the ball is blue, given that it is not yellow?}\end{array} \)
Choose one option:
Identify and remove excluded items before calculating probability.
Only count balls that satisfy the condition (not yellow) and compute the probability.
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