Suppose the population variance [tex]\theta[/tex] is to be estimated from observations [tex] Y_1, Y_2, \dots, Y_n [/tex] using(adsbygoogle = window.adsbygoogle || []).push({});

[tex] \hat{\theta} = \left(\frac 1 n \sum_{i=1}^n (Y_i - \overline Y)^2\right) [/tex]

where[tex] \bar{Y} [/tex] is the mean.

when it didnt say which distribution [tex]Y_i[/tex]s are?

thanks

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# BIAS of theta

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