6-2-4

Calculating and Graphing Single-Variable Statistical Data

kDisplaying the Calculation Results of a Drawn Single-Variable Graph

Single-variable statistics can be expressed as both graphs and parameter values. When these graphs are displayed, the single-variable calculation results appear as shown below when you press 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.

o .............

mean

Σx ...........

sum

Σx2 ..........

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

maxX ......

maximum

Mod ........

mode

Mod : n ... number of data mode items

Mod : F ... data mode frequency

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

#When Mod has multiple solutions, they are all displayed.

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