HP 48g Graphing Calculator - Manual (Page 147)

Test Statistics Commands
Keys Programmable
Command
Description
[MTHlfNXTl PROB (NXTl:
UTPC UTPC Upper-tail chi-square distribution.
Prefix. Takes the degrees of freedom
from level 2 and a real number (r) from
level 1, and returns the probability that
a random variable is greater than x.
IJTPF UTPF Upper-tail f distribution. Prefix. Takes
the numerator degrees of freedom from
level 3, the denominator degrees of
freedom from level 2, and a real number
(a;) from level 1, and returns the
probability that a Snedecor’s F random
variable is greater than x.
UTPN UTPN Upper-tad normal distribution. Prefix.
Takes the mean from level 3, the
variance from level 2, and a real number
(r) from level 1, and returns the
probability that a normal random
variable is greater than x for a normal
distribution.
IJTPT UTPT Upper-tad t distribution. Prefix. Takes
the degrees of freedom from level 2 and
a real number (x) from level-1, and
returns the probability that the
Student’s t random variable is greater
than X.
HD I ST NDIST Normal distribution. Prefix. Takes the
mean from level 3, the variance from
level 2, and a real number (a;) from level
1, and returns the density function at x
for a normal distribution.
12
Note that, when used as an argument for these commands, the number
of degrees of freedom must be between 0 and 499. Also, in the
calculations, the degrees of freedom are rounded to the nearest integer.
Functions of Real and Complex Numbers 12-5