7-7-1

Performing Statistical Calculations

7-7 Performing Statistical Calculations

You can perform statistical calculations without drawing a graph by tapping [Calc] on the menu bar.

Viewing Single-variable Statistical Calculation Results

Besides using a graph, you can also use the following procedure to view the single-variable statistics parameter values.

u To display single-variable calculation results

(1)On the menu bar, tap [Calc] and then [One-Variable].

(2)On the dialog box that appears, specify the [XList] name and select the [Freq] setting (page 7-3-3, 7-3-4).

(3)Tap [OK].

•This displays the Stat Calculation dialog box with the single-variable statistical calculation results described below. You can use the scrollbar to scroll the results.

o : mean

Σx : sum of data

Σx2 : sum of squares

xσn : population standard deviation

xσn–1 : sample standard deviation

n : sample size

minX : minimum

Q1 : first quartile

Med : median

Q3 : third quartile

maxX : maximum

Mode : mode*

ModeN : number of data mode items

ModeF : data mode frequency

*If “Mode = ModeStat” is shown on the Stat Calculation dialog box, it means that solutions are stored in the “ModeStat” system variable. To view the solutions, tap any list name cell on the List Editor window, input “ModeStat”, and then tap w. This will display the “ModeStat” system variable contents in the list.

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