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HP -22S Owner's Manual Page 172

Scientific calculator.
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Statistical Functions
};X·
x=-'
n
SX
=
, /
};(Xj -
X)2
V
n -
1
-
_
};Yi
y - -
n
, I
};(!lj -
jj)
Sy=
V
n - l
m=
};(xi -
x)
Wi -
y)
};(xi -
X)2
b=y-mx
172
C: Equations Used
by
HP-22S Functions

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