Talk:Mean squared prediction error

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Summations and expectations

Throughout this article, shouldn’t every summation sign and every instance of $\sigma ^{2}$ and ${\hat {\sigma }}^{2}$ be multiplied by 1/n? Loraof (talk) 16:28, 21 May 2018 (UTC)[reply]

I’ve gone ahead and changed it. Loraof (talk) 23:33, 28 May 2018 (UTC)[reply]

Should we put 2 in front of trace for the third and fourth equations in section "Estimation of MSPE over the population"? Wentianq (talk) 06:32, 2 April 2019 (UTC)[reply]