(12C) Geometric & Harmonic Mean

[Gamo]

Geometric Mean
https://en.wikipedia.org/wiki/Geometric_mean
(Interesting to note on about Aspect Ratios)

Harmonic Mean
https://en.wikipedia.org/wiki/Harmonic_mean
(Interesting to note on Average Speed)

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Example: FIX 4

Data: 3, 3, 4, 6, 22

Each new problem must clear "Statistic Register"

[f] [∑] // Clear Statistic Registers

3 [R/S] display 1.0000
3 [R/S] display 2.0000
4 [R/S] display 3.0000
6 [R/S] display 4.0000
22 [R/S] dispay 5.0000

When finish with all the data press 0 [R/S] to find GM and HM

0 [R/S] display 5.4372 [X<>Y] 4.4295

Answer: GM = 5.4372 and HM = 4.4295
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Program:

Code:


01 X=0
02 GTO 09
03 1/x
04 ENTER
05 LSTx
06 LN
07 ∑+
08 GTO 00
09 x̄  // X-Bar
10 X<>Y
11 1/x
12 X<>Y
13 e^x
14 GTO 00

Gamo 2/2020