Geometric mean-geometric progression, Mathematics

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Geometric mean

- It is a measure of central tendency normally utilized to measure industrial increases rates.

- It is explained as the nth root of the product of 'n' observations or values

'Illustration

In year 1995 five firms registered the given economic growth rates; 26 percent, 32 percent, 41 percent, 18 percent and 36 percent.

Required

Estimate the GM for the above values

268_Geometric mean 1.png

No. Log
26	1.4150
32	1.5052
41	1.6128
18	1.2533
36	1.5563
	7.3446

Hence Log of GM = 1/5 x 7.3446

= 1.46892

Then GM = Antilog of 1.46892

= 29.43

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