22
STATISTICAL CALCULATIONS
●
To enter the statistical mode, press . Then press
(1-VAR
) to enter one-variable mode, or press
(2-VAR
) to enter two-variable mode. The linear regression
equation
y = Ax + B
is represented in two variables.
●
Before starting a new statistic data entry, be sure to clear the
statistic memory by pressing (CLRDATA).
●
Perform data input and edit:
○
Press to register data
■
In 1-VAR mode:
• Input first data for X1.
• Press to save and to set the frequency of occurrence
(FRQ).
•
Frequency of occurrence default is set to 1 (FRQ=1).
Input data value when needed.
• Press to save and to enter the next data (X2) for input.
•
Repeat these steps by pressing to input the data
value and set the FRQ until finished.
• Press or to save the last entered data point or
FRQ value.
■
In 2-VAR mode:
• Input first data for X1.
• Press to save and set the Y1 value.
• Y value default is set to 1 (Y=1). Input data value when needed.
• Press to save and enter the next data (X2) input
value.
• Repeat these steps by pressing to input data value
for X and Y until finished.
• Press or to save the last entered data point.
○ To edit data, press or to migrate to that value. After
inputting the new value, press or to save.
○ You can press to return to a STAT mode screen for
other calculations. Calculations in blank STAT mode screen
will not be stored in statistic memory.
●
After finishing all data entries, press to calculate the statistic
functions.
2nd
2nd
Random Number Generation
RAND:
: To generate a random number between 0 and 1.
* Using seed value by storing an integer to rand
( ) to control a sequence of random
numbers.
RANDI:
: To generate a random integer between two specified
integers. Results differ each time with the same
possibility occurrence within a boundary. The entry
is divided with " , ".
Example:
* The value is only a sample, results will differ each time.
