Lemma
MediumCounting & chance
AQuA-RAT train #64196 · Probability · Counting & chance

A bag contains 7 white balls, 5 black balls, and 4 red…

A bag contains 7 white balls, 5 black balls, and 4 red balls. One by one, three balls are drawn out without replacement. What is the probability that the third ball is red?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #64196

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