7-11-3

Distributions

Distribution Command List

kNormal Distribution Normal Probability Density

Menu: ����������������[Distribution]-[Normal�������PD���]

Description: This command cal�culat�es the probabilit�y density of normal distribution from a specified x valu�e. Normal probabilit�y density is used for normal distribution.

f (x) =

1

 

e

–

(x – ∝)2

(σ > 0)

 

2σ 2

 

 

σ

 

 

2π

 

 

Definition of Terms

x : data valu�e

σ: population stan�dard deviation (σ > 0) μ : population m�ean

Specifying σ = 1 and μ = 0 produces standard normal distribution.

Calculation Result Output

prob : normal probabilit�y density

Example

Data : 37.5

Population stan�dard deviation : 2

Population m�ean : 35

•Statistics Wizard Operation

(1)On the menu bar, tap [Cal�c] and then [Distribution].

(2)Sel�ect [NormalPD] an�d then tap [Next >>].

(3)Input valu�es.

(4)Tap [Next >>].

(5)To displa�y the graph, tap $.

uProgram, eActivity or Main Application

Command: NormPD

Command Syntax

x valu�e, σ valu�e, μ valu�e

Input Example:

NormPD 37.5,2,35

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