beautypg.com

7 performing statistical calculations, 7 performing statistical calculations -7-1, Performing statistical calculations – Casio ClassPad 300 PLUS User Manual

Page 360

background image

20050501

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].

7-7-1

Performing Statistical Calculations

• 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

Σ

x

:

sum of data

Σ

x

2

:

sum of squares

x

σ

n

:

population standard deviation

x

σ

n

–1

:

sample standard deviation

n

:

sample size

minX :

minimum

Q

1

:

first quartile

Med :

median

Q

3

:

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.