TI-89 / TI-92 Plus / Voyage™ 200 PLT Statistics with List Editor App ‡ Distr (Distribution) Menu 134
F Pdf
Description
‡ (
Distr) Æ 9:F Pdf
F Pdf
computes the probability density function for the Û distribution at a specified
X Value.
The probability density function (pdf) is:
fx
nd
nd
n
d
xnxd x
n
n
nd
()
[( ) ]
()()
()
(
)
=
+
+≥
-
-+
G
GG
/
//
/,
/
/
/
2
22
10
2
2
12
where n = numerator degrees of freedom
d = denominator degrees of freedom
Inputs
X Value A scalar or list of values at which to evaluate the Ûpdf.
Num df A numerator degrees of freedom; must be integers > 0.
Den df A denominator degrees of freedom; must be integers > 0.
Outputs
Pdf A Ûpdf value or list of values. Values are stored to pdf.
X Value A scalar or list of integer event numbers.
Num df A numerator degrees of freedom.
Den df A denominator degrees of freedom.
Output statistic variables are stored in the STATVARS folder.
Example
1. Press ‡(
Dist) and select 9:F Pdf to display the F Pdf input dialog box.
2. Enter the arguments as shown below.
2. Press b to compute the data.
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