HP 48gII User's Manual
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Page 8-16
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
kg
xxxxx L
21
1
⋅==
∏
=
To find the geometric mean of the list stored in S, we can use the
following procedure:
1. Apply function ΠLIST() 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…