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3 statistical calculations, Statistical calculations – Casio ClassPad II fx-CP400 User Manual

Page 237

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Chapter 13: Spreadsheet Application

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u To show or hide lines and markers for a line graph or a scatter graph

1. While a line graph or a scatter graph is on the Graph window, tap the [View] menu.

2. Tap the [Markers] or [Lines] item to toggle it between show (check

box selected) and hide (check box

cleared).

• Line and scatter graphs can have markers only, lines only, or both markers and lines. You cannot turn off

both markers and lines at the same time.

13-3

Statistical Calculations

The upper part of the [Calc] menu includes the same menu items as the Statistics Application [Calc] menu.

Spreadsheet Application

Statistics Application

Menu items with the same name perform the same functions, but there are some differences between the
Statistics Application and Spreadsheet Application in terms of operation procedures, calculation result display,
etc. This section explains statistical operations and functions that are peculiar to the Spreadsheet Application.

Single-variable, Paired-variable and Regression Calculations

When performing these calculations, you need to prepare data of one of the formats shown below.

(a)

(b)

(c)

(d)

X1

X2

X3

X1

X2

X3

Freq 1

Freq 2

Freq 3

X1

X2

X3

Y1

Y2

Y3

X1

X2

X3

Y1

Y2

Y3

Freq 1

Freq 2

Freq 3

Single-variable Data

Single-variable Data

with Frequencies

Paired-variable Data

Paired-variable Data

with Frequencies

To perform this type of calculation:

Prepare this type of data:

Single-variable calculations

(a) or (b)

Paired-variable and regression calculations

(c) or (d)

For any of the above calculations, selecting a command displays a wizard screen. The example below shows
how to perform a regression calculation.