Switch on the calculator. This is done by pressing the ON button. The information that appears on the upper line represents the data or instructions entered. The bottom line represents the signs.
Change calculator mode. You can do this by pressing the calculator mode button. Mode 1 (COMP), mode 2 (SD) and mode 3 (Reg) will be displayed. Mode 1(COMP) is for basic arithmetic while mode 2 (SD) and mode 3 (Reg) are for statistical calculations. Change the mode to Standard Deviation (SD).
Enter data. Clear the memory first by pressing (Shift) (CLR) (1) (Scl) (=). If your data is 3,5,6, enter it as 3 (DT) 5 (DT) 6 (DT). As you enter the data, the number or position (n) of data appears on the screen. The (n) value for 3=1, 5=2 and 6=3. The data entered is used to calculate number of data (n), standard deviation (σn-1), population standard deviation (σn), arithmetic mean (x), sum of value ('x)and sum of squares of values ('x2).
Allocate operations to statistical parameters and do the calculation. This is done as follows: ('x2) = [SHIFT][S-SUM][1], ('x) = [SHIFT][S-SUM][2], n = [SHIFT][S-SUM][3], X=[SHIFT][S-VAR][1], σn=[SHIFT][S-VAR][2], σn-1=[SHIFT][S-VAR][3]. For instance, to calculate population of standard deviation (σn) of the data above press 3 (DT) 5 (DT) 6 (DT) [SHIFT][S-VAR][2] =.
Press the regression mode (REG). This will help you calculate regression. The following is displayed: Lin 1 (Linear regression), Log 2 (Logarithmic regression), Exp 3 (Exponential regression), ?Pwr 1 (Power regression), ?Inv 2 (Inverse regression), ?Quad 3 (Quadratic regression). Select the number of regression you want. Clear the memory (as in step 4).
Enter data. Press < x value> [,] <y value> [DT]. If your data is x =7, 8, 9 and y= 10, 11, 12, enter it as 7[,]10[DT], 8[,]11[DT], 9[,]12[DT].
Assign operations and calculate regression. This is done as x2=[SHIFT] [S-SUM] [1] , Σ x =[SHIFT] [S-SUM] [2], n =[SHIFT] [S-SUM] [3], y2 [SHIFT] [S-SUM] ?[1], Σ y = [SHIFT] [S-SUM] ? [2] , Σ xy= [SHIFT] [S-SUM] ? [3] , Mean of the x data = [SHIFT] [S-VAR] [1], Population standard deviation (x) = [SHIFT] [S-VAR] [2], Sample standard deviation (x)= [SHIFT] [S-VAR] [3], Mean of the y data =[SHIFT] [S-VAR] ?[1], Population standard deviation (y)= [SHIFT] [S-VAR] ?[2] , Sample standard deviation (y)= [SHIFT] [S-VAR] ?[3], Regression coefficient A= [SHIFT] [S-VAR] ?? [1], Regression coefficient B= [SHIFT] [S-VAR] ?? [2]. For instance, to calculate Regression coefficient A for the data above press 7[,]10[DT], 8[,]11[DT], 9[,]12[DT] [SHIFT] [S-VAR] ?? [1].