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{\displaystyle {\begin{aligned}s_{n}^{2}&={\frac {M_{2,n}}{n-1}}\\[4pt]\sigma _{n}^{2}&={\frac {M_{2,n}}{n}}\end{aligned}}}
[[User:ProfRB|ProfRB]] ([[User talk:ProfRB|talk]]) 18:51, 22 March 2019 (UTC)
:2. I think the comment "These formulas suffer from numerical instability, as they repeatedly subtract a small number from a big number which scales with n" is actually wrong. Maybe there is an '''accuracy''' issue, but I don't see why there should be an instability here. A reference would be most welcome. [[User:Natchouf|Natchouf]] ([[User talk:Natchouf|talk]]) 14:08, 20 March 2023 (UTC)
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