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(Pwr) : Power regression
(Inv) : Inverse regression
(Quad) : Quadratic regression
• Always start data input with (CLR) (Scl) to clear
statistical memory
.
• Input data using the key sequence shown below.
< x -data>
< y -data>
• The values produced by a regression calculation depend on the values
input, and results can be recalled using the key operations shown in the
table below.
To recall this type of value: Perform this key operation:
Σ x
2
(S-SUM) (Σ x
2
)
Σ x (S-SUM) (Σ x )
n (S-SUM) ( n )
Σ y
2
(S-SUM) (Σ y
2
)
Σ y (S-SUM) (Σ y )
Σxy (S-SUM) (Σxy)
x
-
(S-VAR) ( x
-
)
σ
x
(S-VAR) ( σ
x
)
s
x
(S-VAR) (s
x
)
y
-
(S-VAR) ( y
-
)
σ
y
(S-VAR) ( σ
y
)
s
y
(S-VAR) (s
y
)
Regression coefficient A (S-VAR) (A)
Regression coefficient B (S-VAR) (B)
Regression calculation other than quadratic regression
Correlation coefficient r (S-VAR) (r)
xˆ (S-VAR) ( xˆ)
37
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