Casio FX-911W Manual do utilizador - Página 13

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Casio FX-911W Manual do utilizador
•
Example:
Xi
y>
29
1.6
50
23.5
74
38.0
103
'
46.4
.118
48.0
Perform
quadratic regression
to
der
termine the regression formula terms
and
correlation coefficient for
the data
nearby. Next,
use
the regression
for-
mula
to
estimate the values
for
v
(es-
timated value
of
v) for
xi
=
16
and
.r
(estimated value
of
.r)
for>v
=
20.
Enter
REG
mode
(Quadratic regression)
fx-85W:
@ e
CD CB CD
Other models:
@
GO
(BCD
£53 (ED
B
29
CD
1.6
S3
50
CD
23.5(211
74
CD
38.0
S3
1
03
CD
46.4
S3
118
CD
48.0
S3
(Regression
Coefficient
A)
(Regression
Coefficient
B)
(Regression
Coefficient
C)
(5-when.o'»18)
(.?
i
when
.W
«
20)
(*,when rt-20)
118.
•35.59856934
1.495939413
©SB
BCD
B
B
CD
B
P6.71629667-H
16
BCD
h
13.38291
067
|
20
S
CD
I
47.14556728
I
B(23
|
175.5872105
Data Input Precautions
•
S3
S3
inputs
the
same
data
twice.
•
You can
also input
multiple entries of
the
same
data
us-
ing
B
CD.
To
input
the data "20
and
30*
five
times,
for
example, press
20
CD
30
©CD
5
S3.
•
The above
results
can be
obtained
in
any
order,
and
not
necessarily
that
shown
above.
•
To
delete
data
you have
just input,
press
B
GS).
«22»
•
Example:
Xi
yt
29
1.6
50
23.5
74
38.0
103
"
46.4
118
48.0
Perform
quadratic regression
to
der
termine the regression formula
terms
and
correlation coefficient for
the
data
nearby. Next,
use
the regression
for-
mula
to
estimate the values
for
5>
(es-
timated vaiue
of
v) for
xi
*
1
6
and
x
(estimated value
of
.r)
for
yi
=
20.
Enter
REG
mode
(Quadratic regression)
fx-85W:
S
S
CD GB CD
Other models:
@
CD
QE)
CD
@
(ED
El
29
CD
1.6
S3
50
CD
23.5
S3
74
CD
38.0S3103CD
46.4
S3
118
CD
48.0
S3
(Regression
Coefficient
A)
(Regression
Coefficient
B)
(Regression
Coefficient
C)
(t-wrien.o-
16)
(.f,
when'tf-20)
(*,when.W«20)
118.
-35.59856934
1.495939413
BCDS
©CE
B
B
CD
B
|
-6.71629667-"!
16
0
CD
1-13.38291067
I
20
BCD
|
47.14556728
I
BCD
I
175.5872105
l
Data
input
Precautions
•
S3 S3
inputs the
same
data
twice.
•
You can
also input
multiple entries of
the
same
data us-
ing
S
CD.
To
input
the
data "20
and
30*
five
times, for
example, press
20
CD
30
B
CD
5 S3.
•
The above
results
can be
obtained
in
any
order,
and
not
necessarily
that
shown
above.
•
•
To
delete
data
you have
just input,
press
B
SD.
•
Formula
memory
lets
you
input
a
single
formula
in
memory, and
then
input
values
for
the
formula's variables
to
calculate
results.
•
Memory
can
hold
a
single formula,
up
to
79
steps
long.
This
function
can be used
in
the
COMP
mode
only.
actually
stored
in
memory when
you
press
the
®
key
in
the
sequence
below.
•
Example: To save
the
following formula,
recall
it,
and
then
use
it
to
calculate
a
result
Y
=*
X
2
+ 3X
-
12
Input
the formula.
.
@
(T]
@
QE)
@ o
Q3
a
3@dDOi2
Y»X»+3X-12.
0.
Store
it
in
memory.
&
Input
a
value
for
its
variable.
7
B
x?
58.
x?
76.
Formula
memory
is
cleared
whenever
you
start
a
new
calculation,
change
to
another
mode,
or
turn
off
power.
»
In
addition
to
decimal
values, calculations
can
J?e
per-
formed
using
binary, octal
and
hexadecimal
values.
You can
specify
the
default
number
system
to
be
ap-
plied to
all
input
and
displayed values,
and
the
number
system
for individual
values
you
input.
You
cannot use
scientific
functions
in
binary, octal,
deci-
mal,
and hexadecimal
calculations.
You
cannot
input
val-
ues
that
include
decimal
part
and an
exponent.
If
you
input
a
value
that includes
a
decimal
part,
the
unit
automatically cuts
off
the decimal
part.
Negative
binary, octal,
and
hexadecimal
values are
pro-
duced,
by
taking the two's
complement.
]
•
Formula
memory
lets
you
input
a
single
formula
in
memory, and
then
input
values
for
the
formula's variables
to calculate
results.
•
Memory
can
hold
a
single formula,
up
to
79
steps
long.
This
function
can be used
in
the
COMP
mode
only.
»
yfcfte-ffiaf'Sh3
fovii&l&la acijally
sic-red
irYmemdry when""
.
you
press
the
S
key
in
the
sequence
below.
•
Example:
To save
the
following formula,
recall
it,
and
then
use
it
to
calculate
a
result
Y
*
X
2
+ 3X
-.1
2
Input the formula.
•.
63 CD
©
GD
B
S3 CD
Q
3@(De9l2
Y«X
a
*3X- 12.
0.
Store
it
in
memory.
®
Input
a
value
for
its
variable.
7B
58.
x?
7.
76.
•
Formula
memory
is
cleared
whenever you
start
a
new
calculation,
change
to
another
mode,
or
turn
off
power.
Bas^/i paic^
>
In
addition
to
decimal
values, calculations
can be
per-
formed
using
binary, octal
and
hexadecimal
values.
»
You
can
specify
the
default
number
system
to
be
ap-
plied to
all
input
and
displayed values,
and
the
number
system
for individual
values
you
input.
>
You
cannot use
scientific
functions
in
binary,
octal;
deci-
mal,
and
hexadecimal
calculations.
You
cannot
input
val-
ues
that
include
decimal
part
and an exponent
>
If
you
input
a
value
that
includes
a
decimal
part,
the
unit
automatically cuts
off
the
decimal part
Negative
binary,
octal,
and
hexadecimal
values are
pro-
duced
by
taking
the
two's
complement
.
.
.
23?