degrees of freedom (positive integer)

7-11-11

Distributions

Definition of Terms

prob : χ2 cumulative probability (p, 0 <p <1) df :

Calculation Result Output

xInv : inverse χ2 cumulative distribution

Example

Probability : 0.6092146

Degrees of freedom : 4

•Statistics Wizard Operation

(1)On the menu bar, tap [Calc] and then [Distribution].

(2)Select [Inverse χ2 CD] and then tap [Next >>].

(3)Input values.

(4)Tap [Next >>].

uProgram, eActivity or Main Application

Command: InvChiCD

Command Syntax

prob value, df value

Input Example:

InvChiCD 0.6092146,4

kF Distribution

F Probability Density

Menu: [Distribution]-[F PD]

Description: This command calculates the probability density of F distribution from a specified x value.

 

Γ

n + d

 

 

 

n

 

n

 

n

–1

 

n.x

– n + d

 

 

2

 

 

 

 

 

 

 

f (x) =

 

 

 

 

 

 

 

2

x

2

1 +

2

 

 

n

 

 

d

 

 

d

 

 

 

d

 

Γ

 

Γ

 

 

 

 

 

 

 

 

 

 

2

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Definition of Terms

x : data value

n:df : degrees of freedom of numerator (positive integer)

d:df : degrees of freedom of denominator (positive integer)

Calculation Result Output

prob : F probability density

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