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How to use ∑x² of a list in mat-run?


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#1 icecat2005

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Posted 19 November 2016 - 10:15 PM

in fx-9860GII, is there a command that easily caluclate ∑x² so I can store it in a variable? What I am doing now is having to go to stats mode and doing 1-variable calculation. I get I list of data from which I have to write down my ∑x² then copy it from my paper into the calculator in math-run mode.



#2 pan.gejt

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Posted 20 November 2016 - 05:52 PM

In RUN-MAT mode press VARS - STAT - X and choose the required variable. After recalling You can also store the variables to the memory.

see UG, page 1-23 - chapter Variable Data (VARS) Menu

The VARS is very useful method how to recall variables.


Edited by pan.gejt, 20 November 2016 - 05:54 PM.

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#3 icecat2005

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Posted 23 November 2016 - 07:47 PM

In RUN-MAT mode press VARS - STAT - X and choose the required variable. After recalling You can also store the variables to the memory.

see UG, page 1-23 - chapter Variable Data (VARS) Menu

The VARS is very useful method how to recall variables.

How do I specify my list. It keeps telling me 'no data'



#4 pan.gejt

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Posted 24 November 2016 - 04:28 PM

Everything is OK on my calc.

In stat mode enter the data, press CALC(F2) - SET(F6), fill the correct list to 1Var XList and frequency to 1VAR Freq, then press exit, press 1VAR(F1) to calculate the stat results for 1-Variable statistics. The results are displayed. Switch to Run-Mat mode and recall the appropriate variable.

 

The similar procedure is for 2-Variable statistics (regressions)- you need to fulfill 2Var XList, 2Var YList, 2Var Freq, then press exit, press 2VAR(F2) or REG(F3) to calculate the stat results for 2-Variable statistics.

 

The excellent guide is Learning_Mathematics_with_Graphics.pdf (check fx-9860G II on the left)

http://edu.casio.com...ation/activity/






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