Casio fx-3800P - Statistical Calculations; Standard Deviation Calculation

OPERATION
__READ-OUT
7/STATISTICAL
CALCULATIONS
“DEG”
*
Be
sure
to
press
in
sequence
prior
to
starting
a
statistical
calculation,
(o)G))
18K
DA
B2Wewe1i2—2eas
ae
ms
i
4546519
7-1
Standard
deviation
©)
oD
EF
Kol)
ES
te
2
I
GF
Ga
GD
=
(6)
*
Set
the
function
mode
to
‘‘SD”
by
pressing
@).
Gn)
0)
2
|
107.7888561
(m?)
Ex.)
Find
On-1,
0n,X,n,
£x
and
Ex?
based
on
the
data
55,54,
51,
55,
53,
53,
54,
52.
mPro-rating
OPERATION
_
READ-OUT
!
"SD"
GED
#5
55
OM
5401
51
Om
556m)
53amEm
(Sample
standard
deviation)
HAE)
|
1.407885953
(Population
standard
deviation)
‘
(Arithmetic
mean)
OPERATION
_READ-OUT
(Number
of
data)
eM,
8,
|
(Sum of value)
8401536013898
(Sum
of
square
value)
22805.
1008
8
848
ene
|
153%
Calculate
the
unbiased
variance
and
the
deviation
between
each
data
item
and
the
average,
1384)
(Subsequently)
Ging)
|1.982142857
(Unbiased
variance)
)
Be
Rs55ea
1.625
(55
—
X)
5468
0.625
(54
—
x)
518
—-2.375
(51
—
x)
®
Time
calculations
:
Thr.
27
min.
58
sec.
Thr.
35min.
16
sec.
+)
Thr.
41
min.
12
sec.
4hr.
44min.
26
sec.
Average:
1
hr.
34
min.
48.67
sec.
Note:
The
sample
standard
deviation
On-1
is
defined
as
OPERATION
READ-OUT
1022755858
mas
=
x
163356316058
fx?
16418
123oanS
4°544°26.
"
S384]
1934°948.67
and
the
arithmetical
mean
X
is
defined
ase
*
Pressing
Ga),
@a)
,@),@),@,
or
key
need
not
be
done
sequentially.
95
—26—-