20050401
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Quadratic/Cubic/Quartic Regression Graph
A quadratic/cubic/quartic regression graph represents connection of the data points of a
scatter diagram. It uses the method of least squares to draw a curve that passes close to as
many data points as possible. The formula that represents this is quadratic/cubic/quartic
regression.
Ex. Quadratic regression
1
(CALC)
4
(X^2)
6
(DRAW)
Quadratic regression
Model formula .....
y
=
ax
2
+
bx
+
c
a .............
regression second coefficient
b .............
regression first coefficient
c .............
regression constant term (
y
-intercept)
r
2
............ coefficient of determination
MSe
........ mean square error
Cubic regression
Model formula .....
y
=
ax
3
+
bx
2
+
cx
+
d
a .............
regression third coefficient
b .............
regression second coefficient
c .............
regression first coefficient
d .............
regression constant term (
y
-intercept)
r
2
............ coefficient of determination
MSe
........ mean square error
Quartic regression
Model formula .....
y
=
ax
4
+
bx
3
+
cx
2
+
dx
+
e
a .............
regression fourth coefficient
b .............
regression third coefficient
c .............
regression second coefficient
d .............
regression first coefficient
e .............
regression constant term (
y
-intercept)
r
2
............ coefficient of determination
MSe
........ mean square error
6-3-7
Calculating and Graphing Paired-Variable Statistical Data
Summary of Contents for fx-9860G AU PLUS
Page 1: ...fx 9860G AU User s Guide E http edu casio com ...
Page 2: ...Important Please keep your manual and all information handy for future reference ...
Page 27: ...20050401 1 1 Keys 1 1 1 Keys ...
Page 335: ...20050401 u u u u u Input Example u u u u u Results 6 5 25 Tests ...
Page 361: ...20050401 Calculation Result Output Example p F distribution probability 6 7 15 Distribution ...
Page 435: ...20050401 8 8 2 Program Library egcw w ww w ...
Page 437: ...20050401 8 8 4 Program Library Example 1 Example 2 fw baw bf w fw baw ca w ...
Page 439: ...20050401 8 8 6 Program Library wba wb w w d ...
Page 441: ...20050401 8 8 8 Program Library dw fcde wfcde wfcde fcde w daw w 20070101 ...
Page 443: ...20050401 8 8 10 Program Library b awaw bwaw aw x d w ...
Page 590: ...CASIO COMPUTER CO LTD 6 2 Hon machi 1 chome Shibuya ku Tokyo 151 8543 Japan SA0701 E ...