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3. Divide the result above by n = 10:
4. Apply the INV() function to the latest result:
Thus, the harmonic mean of list S is s
h
= 1.6348…
Geometric mean of a list
The geometric mean of a sample is defined as
n
n
n
n
k
k
g
x
x
x
x
x
L
2
1
1
⋅
=
=
∏
=
To find the geometric mean of the list stored in S, we can use the
following procedure:
1. Apply
function
Π
LIST() to list S:
2. Apply function XROOT(x,y), i.e., keystrokes
‚»
, to the result in
1:
Thus, the geometric mean of list S is s
g
= 1.003203…