7-5-2

Graphing Paired-Variable Statistical Data

(9) Tap yto draw the xy line graph.

Scatter diagram

xy line graph

Drawing a Regression Graph

Use the procedures below to input paired-variable statistical data. Next perform regression using the data and then graph the results. Note that you can draw a regression graph without performing the regression calculation.

Example 1: Input the paired-variable data shown below and plot the data on a scatter diagram. Next, perform logarithmic regression on the data to display the regression parameters, and then draw the regression graph.

list1 = 0.5, 1.2, 2.4, 4.0, 5.2 list2 = –2.1, 0.3, 1.5, 2.0, 2.4

u ClassPad Operation

(1)mI

(2)Input the data shown above.

(3)Tap [SetGraph] and then [Setting…], or tap G.

(4)On the Set StatGraphs dialog box that appears, configure a StatGraph setup with the settings shown below, and then tap [Set].

Draw: On

Type: Scatter

XList: list1

YList: list2

(5)Tap yto plot the scatter diagram.

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