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20090601
7-11-8
Distributions
S
Program, eActivity or Main Application
Command: TCD
:
Command Syntax
Lower value, Upper value,
df
value
Input Example:
TCD 1.5,
d
,18
Inverse Student-
t
Cumulative Distribution
Menu: [Inv. Distribution]-[Inverse T CD]
Description: This command calculates the inverse of the
t
cumulative distribution.
This command returns the lower bound of integration value
α
that satisfies the
equation above.
Definition of Terms
prob
:
t
cumulative probability (
p
, 0
p
1)
df
: degrees of freedom (
df
> 0)
Calculation Result Output
x
Inv
: inverse
t
cumulative distribution
Example
Probability : 0.0754752
Degrees of freedom : 18
• Statistics Wizard Operation
(1) On the menu bar, tap [Calc] and then [Distribution].
(2) Select [Inverse T CD] and then tap [Next >>].
(3) Input values.
(4) Tap [Next >>].
S
Program, eActivity or Main Application
Command: InvTCD
:
Command Syntax
prob
value,
df
value
Input Example:
InvTCD 0.0754752,18