The mean of 40 observations was 36

The mean of 40 observations was 36. It was found later that an observation 34 was wrongly taken as 20. The corrected new mean is

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #31660