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Standard Deviation
Press
Before starting, be sure to clear the statistical memory by
pressing
You can recall the following statistical value after input all data.
Summation of x ( x )
Sum of Square ( x
Number of data sample ( n )
Population Standard Deviation of x ( x
Sample Standard Deviation of x ( x
Example: To calculate
data: 75, 85, 90, 77, 77 in SD mode.
Regression Calculations
Press
will be shown:
Press
,
[Log] = Logarithmic regression, [Exp] = Exponential regression.
to ender SD mode.
.
Value (Symbol)
2
)
x
2
, x, x, x
O
p
r e
t a
o i
n
to ender REG mode, then the follow screen options
Lin
1
or
for [Lin] = Linear regression,
.
Mean of x ( x )
Maximum value of x ( maxX )
Minimum value of x ( minX )
)
Median value ( med )
n
)
n-1
, x
, minX, maxX, and med of
n
n-1
Display (Upper)
Stat clear
n
=
2
x
x
x
x
n
x
n-1
m
n i
X
m
a
x
X
m
e
d
Log
Exp
2
3
29
D
s i
l p
y a
L (
o
w
e
) r
- - - - - - - - - - - - - - -
. 5
32,808.
4
0
. 4
8
0
8 .
5.741080038
6.418722614
7
. 5
9
. 0
7
. 7
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