Chapter 7:

Statistics Application

The Statistics application provides you with the tools you need to perform the operations below.

￿Statistical data input (as list variables)￿Statistical graph drawing:Single-variable statistical graphs and paired-variable statistical graphs
￿Statistical calculations:

Single-variable, paired-variable, regression, test, confidence interval, and distribution calculations

Tip: Performing a statistical calculation, graphing operation or other operation causes calculation results to be assigned to pre-determined system variables. For more information, see the “System Variable Table” on page 263.

7-1 Using Stat Editor

When you start up the Statistics application, the Stat Editor window shown

List name

 

to the right appears on the display.

 

 

 

Stat Editor is a tool for creating and maintaining lists (list variables), and it

 

 

 

 

 

 

plays a very important role in ClassPad statistical calculations. ClassPad

 

 

 

 

 

 

uses lists as data sources for statistical calculations and for statistical

 

 

 

graphing. You can specify data by its list name.

 

 

 

The list name is located in the cell at the top of each list. The initial default

 

 

 

Stat Editor window shows six lists (columns), named list1 through list6.

 

 

 

Basic List Operations

You can use the Stat Editor window to input and edit the data in the initially displayed list1 through list6. You can also recall list variables you created with the Main application* and create new list variables.

* See 0239 and 0240 in the separate “Examples” booklet.uTo input data into a list

1.On the Stat Editor window, select the cell where you want to input the data item.

• Use the cursor key to move the highlighting, or tap the cell with the stylus.

“Cal'” line (see Tip on the next page)

Cell where data is being input

Number of line where

 

 

 

 

Input data

 

 

 

 

data is being input

 

 

 

 

 

 

 

Chapter 7: Statistics Application

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