Lemma
MediumCounting & chance
AQuA-RAT train #62465 · Probability · Counting & chance

In a box of 11 pencils, a total of 2 are defective

In a box of 11 pencils, a total of 2 are defective. If a customer buys 3 pencils selected at random from the box, what is the probability that neither pencils will be defective?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #62465

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