Question

If the AM of a set oftwo observations is 9 and its GM is 6. then the HM of the set of observations is

a) 4

b) 36

c) 12

d) 1.5

 



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Answer 1

Answer:

For any given numbers, their means, Arithmetic mean (AM), Geometric mean, (GM) and Harmonic mean are related by the relation

Step-by-step explanation:

GM  

2

=AM×HM

So, GM  

2

=9×4=36

=>GM=6

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Answer 2

Answer:

4

Step-by-step explanation:

AM * HM = GM²

HM = GM²/AM

HM = 6*6/9

HM = 36/9 = 4