Casio CLASSPAD 330 3.04 - Manual (Page 462)

20090601
C 2
Cumulative Distribution
Menu: [Distribution]-[C
2
CD ]
Description: This command calculates the probability of C
2
distribution data falling between
a and b .
p =


1
2
df
df
2
x e dx
2
1
df
2
–1
x
2
–
a
b
a : lower bound (Lower)
b : upper bound (Upper)
Definition of Terms
Lower : lower bound
Upper : upper bound
df : degrees of freedom (positive integer)
Calculation Result Output
prob : C
2
distribution probability p
Example
Lower bound : 2.7 (upper bound : d)
Degrees of freedom : 4
• Statistics Wizard Operation
(1) On the menu bar, tap [Calc] and then [Distribution].
(2) Select [C
2
CD] and then tap [Next >>].
(3) Input values.
(4) Tap [Next >>].
(5) To display the graph, tap .
SProgram, eActivity or Main Application
Command: ChiCD :
Command Syntax
Lower value, Upper value, df value
Input Example:
ChiCD 2.7, d,4
Inverse C
2
Cumulative Distribution
Menu: [Inv. Distribution]-[Inverse C
2
CD]
Description: This command calculates the inverse of the C
2
cumulative distribution.
This command returns the lower bound of integration value α that satisfies the
equation above.



7-11-10
Distributions