Which of the following is the correct relation between a (arithmetic mean), b (geometric mean) and c (harmonic mean)?
ac = b
a/c = b
ab = c
ac = b2
The relation is ac=b2
The relation between A.M.(arithmetic mean), G.M.(geometric mean) and H.M. (harmonic mean ) of any two distinct positive numbers is
The best average for constructing an index number is:
(A) Harmonic mean (B) Arithmetic mean (C) Geometric mean (D) None of these