beautypg.com

Statistics, Entering and analyzing statistical data – Casio FX 65 User Manual

Page 10

background image

FX 65 Training guide

Statistics

Entering and analyzing statistical data

[SHIFT] [STAT]

Enters the statistics mode.


[COMP]

Exits the statistics mode. Note that all input data is deleted.


[SHIFT] [SAC]

Clears statistical memory. Be sure to perform this operation
before inputting new data.

[DATA]

Inputs the displayed value as data. Press [DATA] twice to input
two entries of the same value. (NOTE: This is the “M+” key).


[SHIFT] [DEL]

Deletes the displayed value as data.


Note: You can input multiple entries of the same data using [x].

To input 100 ten times, press [100] [x] [10] [DATA].



After entering data, you can retrieve the following values:

[SHIFT] [

σ n

-1

]

Sample standard deviation.


[SHIFT] [

σ n]

Population standard deviation.

[SHIFT] [

x

] Arithmetic

mean.


[SHIFT] [n]

Number of data items.


[SHIFT] [

∑x]

Sum of data.


[SHIFT] [

∑x

2

]

Sum of the squares.






10

References the Casio FX-65 User’s Guide

Casio FX-65 Fraction calculator