•Always start data input with AB1(Scl) =to clear statistical memory.
•Input data using the key sequence shown below. <x-data> P<y-data> S
•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: |
Σx2 | AU1 |
Σx | AU2 |
n | AU3 |
Σy2 | AUr1 |
Σy | AUr2 |
Σxy | AUr3 |
o | AX1 |
xσn | AX2 |
AX3 | |
p | AXr1 |
yσn | AXr2 |
AXr3 | |
Regression coefficient A | AXrr1 |
Regression coefficient B | AXrr2 |
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Regression calculation other than quadratic regression
Correlation coefficient r AXrr3
mAXrrr1
nAXrrr2
•The following table shows the key operations you should use to recall results in the case of quadratic regression.
To recall this type of value: | Perform this key operation: |
Σx3 | AUrr1 |
Σx2y | AUrr2 |
Σx4 | AUrr3 |
Regression coefficient C | AXrr3 |
m1 | AXrrr1 |
m2 | AXrrr2 |
n | AXrrr3 |
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