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HP 48gx User Manual

HP 48gx
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Lesson
31:
Data
and
Statistics
Statistical
data
for
the
HP
48
are
represented
by
matrices.
Such
a
matrix
contains
a
row
for
each
data
point
and
a
column
for
each
variable
measured
at
that
point.
var
vars
var,
pointy
x11
Z12
Tim
pointy
x21 Zao
Tom
pomty
Ini
Ino
Tnm
The
Statistics
application
uses
the
data
stored
in
the current
statistical
matrix,
stored
in
reserved
variable
Y
DAT.
You
change
the
current
statistical
matrix
each
time
you
work
with
a
different
set
of
data.
Example:
Find
the
mean
and
standard
deviation
for
each
variable
in
the
following
set
of
sample
data.
The
two
variables
are
the
consumer
price
index
(CPI)
and
the
producer
price
index
(PPI)
for
the
United
States
over
a
5-year
period:
Step
1:
C0)
fie
Select
Zimole—uwar.
.
Year
CPI
PPI
1
91
9.2
2
58
4.6
3
6.5
6.1
4
76
7.8
5
11.5 19.3
.
from
the
STAT
menu.
[i
SINGLE-YARIABELE
=TATISTICE
wa
EDAT:
coL:
i
TYPE:
Sample
_
MEAN
_
STD
DEV
_
VARIANCE
_TOTAL
_
MAXIMUM
_
MINIMUM
EMTER
STATISTICAL
DATA
EOT
[CHOOZ]
|
[CANCL]
OK
Calculus,
Statistics
and
Advanced
Mathematics
7-7

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HP 48gx Specifications

General IconGeneral
ModelHP 48gx
TypeGraphing Calculator
Display TypeLCD
Display Size131x64 pixels
Memory128 KB RAM
Expandable MemoryYes, via expansion cards
Release Year1993
ProcessorSaturn
Programming LanguageRPL
Power Supply3x AAA batteries
Weight255 g (9 ounces)

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