Casio FX-115ES PLUS User Manual page 31

1 1 To select linear regression and input the following data:
(170, 66), (173, 68), (179, 75)
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, 1m(M–), 1t(STO). Pol, Rec, ÷R, 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 Y.
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:
11(STAT/DIST)3(Edit)1(Ins).
To delete all Stat Editor contents: In the Stat Editor, perform the following
key operation: 11(STAT/DIST)3(Edit)2(Del-A).
Obtaining Statistical Values from Input Data
To obtain statistical values, press A while in the Stat Editor and then
recall the statistical variable (σ
variables and the keys you should press to recall them are shown below.
For single-variable statistical calculations, the variables marked with an
asterisk (*) are available.
Sum: Σ *, Σ
x x
2
11(STAT/DIST) 3(Sum) 1 to 8
Number of Items:
σ
, Sample Standard Deviation: s
y
11(STAT/DIST) 4(Var) 1 to 7
Regression Coefficients: A, B, Correlation Coefficient:
m n
Values: ,
11(STAT/DIST) 5(Reg) 1 to 5
Regression Coefficients for Quadratic Regression: A, B, C, Estimated
m m
Values: , ,
1 2
11(STAT/DIST) 5(Reg) 1 to 6
• See the table at the beginning of this section of the manual for the regression
formulas.
N3(STAT)2(A+BX)
170 = 173 = 179 =ce
66 = 68 = 75 =
*, Σ , Σ , Σ , Σ
y y xy
2
n
*, Mean:
n
, Σ
x
2 , etc.) you want. Supported statistical
x
, Σ , Σ
x x y x
3 2 4
, Population Standard Deviation: σ
o p
*,
*, s
x y
E-30
STAT STAT
STAT STAT
STAT STAT
r
, Estimated
*,
x