Casio ClassPad 330, User Manual

Page: 461 / 954

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7-11-9
Distributions
I
C
2
Di s tribution
C
2
Probability Den s ity
Menu: [Distribution]-[
C
2
PD]
De s cription: This command calculates the probability density of
C
2
distribution from a
specified
x
value.
f
(
x
) =
1
2
df
df
2
x e
2
1
df
2
–1
x
2
–
Definition of Term s
x
: data value
df
: degrees of freedom (positive integer)
Calculation Re s ult Output
prob
:
C
2
probability density
Example
Data : 2
Degrees of freedom : 4
• Stati s tic s Wizard Operation
(1) On the menu bar, tap [Calc] and then [Distribution].
(2) Select [
C
2
PD] and then tap [Next >>].
(3) Input values.
(4) Tap [Next >>].
(5) To display the graph, tap
.
S Program, eActivity or Main Application
Command: ChiPD :
Command Syntax
x
value,
df
value
Input Example:
ChiPD 2,4