Casio FX-9750G, FX-9860GII
(yi – (axi + b))2,
(yi – (a + bxi))2,
(yi – (axi 2 + bxi + c))2,
(yi – (axi3+ bxi2+ cxi + d ))2,
(yi – (axi4+ bxi3 + cxi2 + dxi + e))2

• Linear Regression (ax + b).............	MSe =
(a + bx).............	MSe =
• Quadratic Regression.....................	MSe =
• Cubic Regression ...........................	MSe =
• Quartic Regression ........................	MSe =
• Logarithmic Regression..................	MSe =
• Exponential Repression (a·ebx) .......	MSe =
(a·bx)........	MSe =
• Power Regression ..........................	MSe =
• Sin Regression ...............................	MSe =
• Logistic Regression ........................	MSe =

1

n – 2

1

n – 2

1

n – 3

1

n – 4

1

n – 5

1

n – 2

1

n – 2

1

n – 2

1

n – 2

1

n – 2

1

n – 2

n

(yi – (axi + b))2

i=1

n

(yi – (a + bxi))2

i=1

n

(yi – (axi 2 + bxi + c))2

i=1

n

(yi – (axi3+ bxi2+ cxi + d ))2

i=1

n

(yi – (axi4+ bxi3 + cxi2 + dxi + e))2

i=1

n

(yi – (a + b ln xi ))2

i=1

n

(ln yi – (ln a + bxi ))2

i=1

n

(ln yi – (ln a + (ln b) · xi ))2

i=1

n

(lnyi – (ln a + b lnxi ))2

i=1

n

(yi – (a sin (bxi + c) + d ))2

i=1

n	C	2
yi –
	1 + ae	–bxi
i=1

SEstimated Value Calculation for Regression Graphs

The STAT mode also includes a Y-CAL function that uses regression to calculate the estimated y-value for a particular x-value after graphing a paired-variable statistical

regression.

The following is the general procedure for using the Y-CAL function.

1. After drawing a regression graph, press	(G-SLV)(Y-CAL) to enter the graph
selection mode, and then press U.

If there are multiple graphs on the display, use D and A to select the graph you want, and then press U.

• This causes an x-value input dialog box to appear.

2.Input the value you want for x and then press U.

•This causes the coordinates for x and y to appear at the bottom of the display, and moves the pointer to the corresponding point on the graph.

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