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2-5 Statistical Calculations
STAT LIST (or STAT LIST 0) is for outputting
all
of the statistics.
ST
AT
LIST I is for one-variable statistics alone and ST AT LIST 2 for
paired-
variable
statistics.
The details are explained in the following table
:
STAT LIST (0)
STAT LIST
1
STAT LIST2
n
n
n
Lx
Lx
Lx
Ly
Ly
Lx 2
Lx t
2
Lxt
2
Ly2
L yt
2
Lxy
Lxy
x
Lx/
n
Lx/
n
LX/
n
ii
Ly/
n
Ly/
n
x<Y
n
x<Y
n
x<Y
n
x<Y
n
y<Y
n
y<Y
n
y<Y
n
x
<Y
n
-
1
x<Y
n
-
1
x<Y
n
-
1
x<Y
n
-
1
y<Y
n
-
1
y<Y
n
-
1
y<Y
n-
1
a
a
a
b
b
b
r
r
r
Output
of all
Output of
one-
Output
of paired-
variable
secondarily-
the statistics
variable statistics
processed
statistics
Regression formula
:
y
=
a
+
b
•
x
EOX and EOY are treated as functions. These can be calculated in the same way
as ordinary numerical functions; "EOXy
value"
or "EOY
x
value".
Whenx
and
y
values are
variables
or
numeric
values,
parentheses can be
omitted
in the same
way
as
in the case
of
SIN, etc.
Now master statistical calculations by doing the following exercises:
Exercise:
The
table
at right shows the state of ship-
ments of
product
x
and
product
y.
Deter-
mine the variance
of
shipments by
finding
the
standard deviation.
~
c
x
y
4
5
2
2
1
5
6
7
8
5
8
8
5
5
9
39
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