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Jul 31, 2014 at 21:16 vote accept Set
Jul 22, 2014 at 4:29 answer added Glen_b timeline score: 5
Jul 22, 2014 at 1:51 comment added soakley $s^2$ is unbiased for $\sigma^2,$ so, yes, $s$ is biased for $\sigma.$
Jul 22, 2014 at 1:33 history asked Set CC BY-SA 3.0