Casio FX-7400GII - SOFTWARE VERSION 2-00 User Manual page 157

• Linear Regression (
• Quadratic Regression.....................
• Cubic Regression ...........................
• Quartic Regression ........................
• Logarithmic Regression..................
• Exponential Repression (
• Power Regression ..........................
• Sin Regression ...............................
• Logistic Regression ........................
Estimated 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
regression.
The following is the general procedure for using the Y-CAL function.
1. After drawing a regression graph, press
selection mode, and then press
If there are multiple graphs on the display, use
and then press
x
• This causes an
2. Input the value you want for
• This causes the coordinates for
the bottom of the display, and moves the pointer to the
corresponding point on the graph.
ax b
MSe = MSe =
+ ).............
a bx MSe = MSe =
( + ).............
MSe = MSe =
MSe = MSe =
MSe = MSe =
MSe = MSe =
bx
a e
· ) ....... MSe = MSe =
x
a b
MSe = MSe =
( · )........
MSe = MSe =
MSe = MSe =
MSe = MSe =
x
-value after graphing a paired-variable statistical
.
.
-value input dialog box to appear.
x
and then press
x
and
1 1 n n
(y (y – (ax – (ax
i i
n – 2 n – 2
i=1 i=1
1 1 n n
(y (y – (a + bx – (a + bx
i i
n – 2 n – 2
i=1 i=1
n n
1 1
(y (y – (ax – (ax
i i
n – 3 n – 3
i=1 i=1
n n
1 1
(y (y – (ax – (ax
i i
n – 4 n – 4
i=1 i=1
n n
1 1
(y (y – (ax – (ax
i i
n – 5 n – 5
i=1 i=1
n n
1 1
(y (y – (a + b ln x – (a + b ln x
i i
n – 2 n – 2
i=1 i=1
1 1 n n
(ln y (ln y – (ln a + bx – (ln a + bx
i i
n – 2 n – 2
i=1 i=1
1 1 n n
(ln y (ln y – (ln a + (ln b) · x – (ln a + (ln b) · x
i i
n – 2 n – 2
i=1 i=1
n n
1 1
(ln y (ln y – (ln a + b ln x – (ln a + b ln x
i i
n – 2 n – 2
i=1 i=1
1 1 n n
(y (y – (a sin (bx – (a sin (bx
i i
n – 2 n – 2
i=1 i=1
1 1 n n
y y – –
i i
n – 2 n – 2 1 + ae 1 + ae
i=1 i=1
(G-SLV) (Y-CAL) to enter the graph
and to select the graph you want,
.
y
to appear at
6-17
2 2
+ b)) + b))
i i
2 2
)) ))
i i
2 2
2 2
+ bx + bx + c)) + c))
i i i i
3 3 2 2
2 2
+ bx + bx + cx + cx + d )) + d ))
i i i i i i
4 4 3 3 2 2
+ bx + bx + cx + cx + dx + dx + e)) + e))
i i i i i i i i
2 2
)) ))
i i
2 2
)) ))
i i
2 2
)) ))
i i
2 2
)) ))
i i
2 2
+ c) + d )) + c) + d ))
i i
2 2
C C
–bx –bx
i i
2 2