7-11-6

Distributions

kt Distribution

Student-tProbability Density

Menu: [Distribution]-[Student-T PD]

Description: This command calculates t probability density from a specified x value.

 

 

df + 1

 

x

–

df+1

 

 

 

 

 

 

 

2

 

 

 

 

 

2

Γ

 

2

 

1+ df

 

 

f (x) =

 

 

 

 

 

π .df

 

 

Γ

df

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

Definition of Terms

x : data value

df : degrees of freedom (df > 0)

Calculation Result Output

prob : Student-tprobability density

Example

Data : 2

Degrees of freedom : 5

•Statistics Wizard Operation

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

(2)Select [Student-T PD] and then tap [Next >>].

(3)Input values.

(4)Tap [Next >>].

(5)To display the graph, tap $.

uProgram, eActivity or Main Application

Command: TPD

Command Syntax

x value, df value

Input Example:

TPD 2,5

20060301