Show that β 2 of Eq. (11.3.8) can also be expressed as and var (β 2 )
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and var (β2) given in Eq. (11.3.9) can also be expressed as
where yi = Yi YÌ and xi = Xi XÌ represent deviations from the weighted means YÌ and XÌ defined as
Transcribed Image Text:
Σwyfr s Σν. wiy}x β5 Σwx? var (B5) = 2 Σwx
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