Casio fx-350TL User Manual page 24

• Example:
x
i
29
50
74
103
118
Enter REG mode (Quadratic regression)
F F 2 r 3
fx-85W:
Other models:
A m =
29
P
74
(Regression Coefficient A)
(Regression Coefficient B)
(Regression Coefficient C)
ˆ y x
( when i = 16)
ˆ x y
( when i = 20)
1
ˆ x y
( when i = 20)
2
Data Input Precautions
S S
• inputs the same data twice.
• You can also input multiple entries of the same data us-
A G
ing
example, press 20
• The above results can be obtained in any order, and not
necessarily that shown above.
• To delete data you have just input, press
Perform quadratic regression to de-
y
i
termine the regression formula terms
1.6
and correlation coefficient for the data
23.5
nearby. Next, use the regression for-
38.0
mula to estimate the values for
46.4
timated value of
(estimated value of
48.0
q 3 r 3
P S
1.6
S
38.0 103
118
. To input the data "20 and 30" five times, for
P
P
50 23.5
P
46.4
P
48.0
A q =
A w =
A e =
A b
16
A O
20
A O
A G
30
E-22
y x
) for
i
x
) for
S
S
S
-35.59856934
1.495939413
-6.71629667
-13.38291067
47.14556728
175.5872105
S
5 .
A U
ˆ y
(es-
ˆ x
= 16 and
y
= 20.
i
118.
REG
- 0 3
.