HP 12C manual Statistics, Calculations of List and Net Prices with Discounts, 159

Calculations of List and Net Prices with Discounts

•L = List price.

•N = Net price.

•D = Discount(%).

D' = 1 –			---------D
			100
•
L = D--------------------------------------------------'					N
	⋅ D'		2	⋅ SS... D’DF
		x
•
					N	
Dx = 	1		– L-------------------------------------------------------------(D1⋅ D2 ⋅ DD... ⋅ DX – 1)

Statistics

Exponential Curve Fit

•y = AeBx

Σxi lnyi		1	(Σxi)(Σlnyi)
	– n--
B = -----------------------------------------------------------	2		1		2 -
Σxi				(Σxi)
		– n--

•

A	= exp	Σ lnyi	– B	Σxi
		------------n-		-------n

• = -AeBx

Logarithmic Curve Fit

•y = A + B(ln x)

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