Lemma
MediumCounting & chance
AQuA-RAT train #812 · Probability · Counting & chance

A bag contains 4 white balls, 4 black balls, and 3 red…

A bag contains 4 white balls, 4 black balls, and 3 red balls. One by one, three balls are drawn out without replacement. What is the probability that the third ball is red?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #812

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