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3 .. 3 and Rnd(10 . 3) .. 3 1 ....(SETUP)..(Fix) 10 ..3 3 10.000 ....(Rnd)10 ..3 .... 3 9.999 E-20 Statistical Calculations (STAT) To start a statistical calculation, perform the key operation ....(STAT) to enter the STAT Mode and then use the screen that appears to select the type of calculation you want to perform. To select this type of statistical calculation: (Regression formula shown in parentheses) Single-variable (X) Paired-variable (X, Y), linear regression (y =A+Bx) Paired-variable (X, Y), quadratic regression ( y =A+Bx +Cx2) Paired-variable (X, Y), logarithmic regression ( y =A+Blnx) Paired-variable (X, Y), e exponential regression ( y =AeBx) Paired-variable (X, Y), ab exponential regression ( y =ABx) Paired-variable (X, Y), power regression (y =AxB) Paired-variable (X, Y), inverse regression ( y =A+B/x) Press this key: ..(1-VAR) ..(A+BX) ..(_+CX2) ..(ln X) ..(e^X) ..(A•B^X) ..(A•X^B) ..(1/X) Pressing any of the above keys ( to ..) displays the Stat Editor. Note: When you want to change the calculation type after entering the STAT Mode, perform the key operation ....(STAT)..(Type) to display the calculation type selection screen. Inputting Data Use the Stat Editor to input data. Perform the following key operation to display the Stat Editor: ....(STAT)..(Data). The Stat Editor provides 80 rows for data input when there is an X column only, 40 rows when there are X and FREQ columns or X and Y columns, or 26 rows when there are X, Y, and FREQ columns. Note: Use the FREQ (frequency) column to input the quantity (frequency) of identical data items. Display of the FREQ column can be turned on (displayed) or off (not displayed) using the Stat Format setting on the setup menu. To select linear regression and input the following data: (170, 66), (173, 68), (179, 75) ....(STAT)..(A+BX) 170..173 ..179 ....C 66..68..75 E-21 STATSTATSTATSTATSTATSTAT Important: • All data currently input in the Stat Editor is deleted whenever you exit the STAT Mode, switch between the single-variable and a paired- variable statistical calculation type, or change the Stat Format setting on the setup menu. • The following operations are not supported by the Stat Editor: .., ....(M–), ....(STO). Pol, Rec, and multi-statements also cannot be input with the Stat Editor. To change the data in a cell: In the Stat Editor, move the cursor to the cell that contains the data you want to change, input the new data, and then press ... To delete a line: In the Stat Editor, move the cursor to the line that you want to delete and then press ... To insert a line: In the Stat Editor, move the cursor to the location where you want to insert the line and then perform the following key operation: ....(STAT)..(Edit)..(Ins). To delete all Stat Editor contents: In the Stat Editor, perform the following key operation: ....(STAT)..(Edit)..(Del-A). Obtaining Statistical Values from Input Data To obtain statistical values, press while in the Stat Editor an...

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