6-2-3

Calculating and Graphing Single-Variable Statistical Data

kNormal Distribution Curve (N• Dis)

The normal distribution curve is graphed using the following normal distribution function.

 

 

1

 

 

(x–x)

2

y =

 

e

–

 

 

2xσn

2

 

π) xσn

 

 

(2

 

 

 

 

XList specifies the list where the data is input, while Freq specifies the list where the data frequency is input. 1 is specified for Freq when frequency is not specified.

kBroken Line Graph (Brkn)

Lines connect center points of a histogram bar.

XList specifies the list where the data is input, while Freq specifies the list where the data frequency is input. 1 is specified for Freq when frequency is not specified.

⇒

w(Draw)

The display screen appears as shown above before the graph is drawn. At this point, you can change the Start and Width values.

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