Lemma
MediumCounting & chance
AQuA-RAT train #80200 · Probability · Counting & chance

A box contains 20 electric bulbs, out of which 4 are defective

A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random form this box. The probability that at least one of these is defective is:

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #80200

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