Casio FC-100V, FC-200V yσn, ACommands when Linear Regression Calculation (A+BX) Is Selected, {n.Σx2 – (Σx)2}{n.Σy2 – (Σy)2}, r, xσn, o = Σnx, Σyp = n, Σ (x – o)2, Σ (x – o)2

ACommands when Linear Regression Calculation (A+BX) Is Selected

With linear regression, regression is performed in accordance with the following model equation.

y = A + BX

The following are the commands that appear on the sub- menus that appear when you select 4(Sum), 5(Var), 6(MinMax), or 7(Reg) on the STAT menu while linear regression is selected as the statistical calculation type.

Calculation formula used for each command

o = Σnx

xσn =	Σ (x – o)2
		n
xσn –1 =		Σ (x – o)2
		n – 1

Σy p = n

yσn =	Σ (y – p)2
		n
yσn –1 =		Σ (y – p)2
		n – 1

A = Σy – B.Σx n

B= n.Σxy – Σx.Σy n.Σx2 – (Σx)2

r =

n.Σxy – Σx.Σy

{n.Σx2 – (Σx)2}{n.Σy2 – (Σy)2}

m = y – A B

n = A + Bx

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