AQuA-RAT train #67995 · Arithmetic · Averages

For a certain exam,a score of 86 was 5 standard deviations above…

For a certain exam,a score of 86 was 5 standard deviations above mean and a score of 67 was 2.5 standard deviations above mean.What was the mean score for the exam?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #67995

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