Casio FX-9750G PLUS User's Manual & Technical Reference page 338

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Distribution
k k k k k Chi-square Distribution
You can use the following menu to select from the different types of chi-square
distribution.
u u u u u χ
χ
distribution at a specified
Perform the following key operations from the statistical data list.
Data is specified using parameter specification. The following shows the meaning
of each item.
310
• {Cpd}/{Ccd} ... {χ probability density}/{χ
2
probability density
2
probability density calculates the probability density function for the χ
2
1 1
f (x) =
2
df
Γ
2
5(DIST)
3(CHI)
1(Cpd)
x
..................... data
df
.................... degrees of freedom (positive integer)
Execute .......... executes a calculation or draws a graph
To calculate χ
Example
value
For this example, we will calculate χ
x
= 1 and degrees of freedom = 3.
bw
dw
1(CALC)
p x ) ................. χ
(
2
x
value.
df
df x
x
( > 0)
–1 –
2
x e
2 2
probability density for a specific parameter
2
probability density
2
distribution probability} calculation
probability density when
2
2