Entering Data - Citizen SR-281 User Manual

LIN Linear Regression
LOG Logarithmic Regression
EXP Exponential Regression
POW Power Regression
D–CL Clear all statistical data

Entering data

Always make sure you clear statistical data by D–CL before performing
statistical calculations.
(A) To input single–variable data using the following syntaxes :
# Individual data : [ DATA ] < x value >
# Multiple data of the same value :
[ DATA ] < x value > [ x ] < Number of repeats >
(B) To input paired–variable / regression data using the following
syntaxes :
# Individual data-set : [ DATA ] < x value > [
# Multiple data of the same value :
[ DATA ] < x value > [
(Note) : Even you exit STAT mode, all data are still retained unless you
clear all data by selecting D-CL mode.
Displaying results
The values of the statistical variables depend on the data you input.
You can recall them by the key operations shown in the below table.
Single–variable statistics calculations
Variables
n ( [ n ] )
x ( [2nd]+[ x ] )
Sx ( [2nd]+[ Sx ] )
σ x ( [2nd]+[ σ x ] )
x ( [2nd]+[
2
x ( [2nd]+[
CP ( [2nd]+[ CP ] ) Potential capability precision of the x values
] < y value > [ x ] < Number of repeats >
Meaning
Number of the x values entered
Mean of the x values
Sample standard deviation of x values
Population standard deviation of x values
x ] ) Sum of all x values
x ]) Sum of all x
2
y = a + b x
y = a + b lnx
bx
y = a • e
b
y = a • x
2
values
-E28-
] < y value >