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Keystrokes
12 I
, .. ro ..
I
9
1C>tS1
(0
5
1, .. ", ..
1 24
1C>tS1
(0
2
I
CHS
11""""1
29 1C>tSI(0
9
I C>tS
II
""",.
1
35
1C>tSI(0
moo
Ix»1
mill
@l)
Specific Features of the HP-33E
23
Display
-9.
4.0000
·24.
5.0000
·2.0000
6.0000
-9.0000
7.0000
-21.5714
5.2857
8.7912
8.2808
Numbe
r
of
pairs is now
7
(n
~
7).
A verage low
temperature
(mean of x) is
in displayed
X-reg isler.
A
verage
hi
g
h
le
mperature
(mean of
y)
is placed in
the
displayed
X-registe
r.
Siandard
deviat io
n
of low
temperatures (x values) is
in
the di
splayed X-reg ister.
Standard
deviation of
high
temperatures
(y
values) is
placed in the
displayed
X- reg ister.
Deleting and Correcting Data
If you key in
an
i ncorrect va lue
and
ha
ve
nOI
executed
[EJ,
press
IClXI
to
delete the
incorrect number
or
digits. then
key
in
the
correct
number.
If
one of the values
is
changed
,
or if
you
discover
that
o ne of
the
values
is
in error after you
have
execu ted the
[EJ
function,
you can
correct
the summations
by
using
the
~
(summation
mill/IS)
function as follows:
I
.
Key
the
incorrect data pair
into
the
X-
and
V-registers. (You
can
use
ILsT xl
to return
a si ngle
incorrect
data value
to
the
displayed
X- register.)
2.
Press
ill II-
to delete the
incorrect
data.
3.
Key
in
the
correct values
for
x
and
y.
(If
one va lue of
an
x, y
data pa
ir
is
incorrect.
bot
h
values
must
be de leted
and reentered
.)
4.
Press [EI.
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