Casio fx-9750G PLUS - Manual (Page 340)

312
k k k k k F Distribution
You can use the following menu to select from the different types of F distribution.
• { Fpd}/{Fcd} ... { F probability density}/{ F distribution probability} calculation
u u u u u F probability density
F probability density calculates the probability density function for the F
distribution at a specified x value.
Γ
n
2
x
d
n
n
2
– 1
2
n
Γ
2
n + d
Γ 2
d d
nx
1 +
n + d
2
f (x) =
–
( x > 0)
Perform the following key operations from the statistical data list.
5 (DIST)
4 (F)
1 (Fpd)
Data is specified using parameter specification. The following shows the meaning
of each item.
x ..................... data
n - df ................. numerator degrees of freedom (positive integer)
d - df ................. denominator degrees of freedom (positive integer)
Execute .......... executes a calculation or draws a graph
Example To calculate F probability density for a specific parameter
value
For this example, we will calculate F probability density when
x = 1, n - df = 24, and d - df = 19.
bw
cew
bjw
1 (CALC)
p ( x ) ................. F probability density
Perform the following key operations to display a graph.
J
ccc
6 (DRAW)
18 - 8
Distribution