Casio fx-9750G Statistical Graphs and Calculations Manuel d'utilisateur télécharger pdf (Page 14)

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18 - 3 Calculating and Graphing Single-Variable Statistical Data

k Displaying Single-Variable Statistical Results

Single-variable statistics can be expressed as both graphs and parameter values.

When these graphs are displayed, the menu at the bottom of the screen appears as

below.

1 (1VAR) ..... Single-variable calculation result menu

Pressing 1 (1VAR) displays the following screen.

1(1VAR)

• Use c to scroll the list so you can view the items that run off the bottom of the

screen.

The following describes the meaning of each of the parameters.

x ..................... Mean of data

Σx ................... Sum of data

Σx

.................. Sum of squares

xσn .................. Population standard deviation

xσn-1 ................ Sample standard deviation

n ..................... Number of data items

minX ............... Minimum

Q1 .................. First quartile

Med ................ Median

Q3 .................. Third quartile

x –xσn ............ Data mean – Population standard deviation

x + xσn ............ Data mean + Population standard deviation

maxX .............. Maximum

Mod ................ Mode

• Press 6 (DRAW) to return to the original single-variable statistical graph.

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Casio fx-9750G Statistical Graphs and Calculations Manuel d'utilisateur Page 14