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36
Value
35
45
55
65
Frequency
1
1
5
2
Example:
Calculate
standard deviation,
mean,
and
variance ( sx)
2
from the following
data:
Set
the
computer
in
the statistical
calculation
mode.
jLx
2
-ni
2
ax=
n
(Used when all
the populations
are
taken
as
sample data
or
when finding the
standard
deviation of a population with
samples
taken
as
that
population.)
Data
for
singl
e -variable
statistic calculations
are input by
the following key operations:
(1)
Data
@ill!
(used
to
enter
data one
by one)
(2) Data
00
Frequency
@ill!
(used
to
enter
two
or
more
of
the same data)
"n".
(6)
ax:
j
~-----
(Used to estimate
the
standard deviation
of
LX
2
-
ni
2
sx
=
.
a
population from
the sample
data extracted
·
n
-
1
from that population.)
Standard
deviation
with
population parameter taken to be
"n-1
".
sx:
(5)
1.
Single-variable Statistical Calculation
The
following
statistics are
obtainable
in a
single-variable
statistic
calculation:
(1)
n:
Number of samples
(2)
Lx":
Sum total of
sampl
e
s
(3)
Lx
2:
Sum of
squares
of
samples
(4)
:X:
Mean
value of samples
i, , . , ,
Lx
n
Standard deviation
with population parameter taken to
be
• Hexadecimal calculation
* Conversion
between
hexadecimal
and decimal
numbers
To clear
previous
statistical
i
n
puts
and
calculations,
reset the statistical calculation
mode
once and
set this
mode
again. Otherwise, when
a new
statistical
calculation
is
performed, incorrect answers will be obtained.
When the statistical calculation mode
is
set,
the
following
cannot
be
performed:
•
Memory calculation
•
Calculation with
parentheses
•
Coordinates
conversion
Using
as a Calculator
- Quick Links:
- Basic Commands
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