
•Always start data input with AB1(Scl) =to clear statistical memory.
•Input data using the key sequence shown below. 
•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 | AUr 1 | 
| Σy | AUr 2 | 
| Σxy | AUr 3 | 
| o | AX1 | 
| xσn | AX2 | 
| AX3 | |
| p | AXr 1 | 
| yσn | AXr 2 | 
| AXr 3 | |
| Regression coefficient A | AXr r1 | 
| Regression coefficient B | AXr r2 | 
| 
 | 
 | 
Regression calculation other than quadratic regression
| Correlation coefficient r | AXr r3 | 
| m | AXr rr 1 | 
| n | AXr rr 2 | 
| 
 | 
 | 
•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 | AUr r1 | 
| Σx2y | AUr r2 | 
| Σx4 | AUr r3 | 
| Regression coefficient C | AXr r3 | 
| m1 | AXr rr 1 | 
| m2 | AXr rr 2 | 
| n | AXr rr 3 | 
| 
 | 
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