Lemma
MediumAverages
AQuA-RAT train #34554 · Arithmetic · Averages

A certain list of 100 data has an average (arithmetic mean) of…

A certain list of 100 data has an average (arithmetic mean) of 10 and a standard deviation of d, where d is positive. Which of the following pairs of data, when added to the list, must result in a list of 110 data with standard deviation less than d?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #34554

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