Lemma
MediumCounting & chance
AQuA-RAT train #37385 · Probability · Counting & chance

If there are 30 red and blue marbles in a jar, and…

If there are 30 red and blue marbles in a jar, and the ratio of red to blue marbles is 6:4, what is the probability that, drawing twice, you will select two red marbles if you return the marbles after each draw?

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 #37385

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