Casio FX-991ES Appendix - Page 20
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#060 o = Σx n xσn = Σ (x - o)2 n xσn -1 = p = Σy n Σ (x - o)2 n - 1 yσn = Σ (y - p)2 n yσn -1 = Σ (y - p)2 n - 1 A = Σy - B.Σx n B = n.Σxy - n.Σx2 - Σx.Σy (Σ x)2 r = n.Σxy - Σx.Σy {n.Σx2 - (Σx)2}{n.Σy2 - (Σy)2} m = y - A B n = A + Bx -19-
–19–
#060
A
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