No, 6 is.
mean = (4 + 81)/2 = 85/2 = 42.5
6
6.0
Their geometric mean is:sqrt(42*(1/9)2)=sqrt(16*(1/81))=sqrt(16/81)=4/9-------------------The geometric mean of a set of n terms is equal to the nth root of the product of those n terms. The geometric mean of 4 and 1/9 is sqrt(4*(1/9)) = sqrt(4/9) = 2/3.
MEAN = ( 8+10 )/2 = 18/2 =9
Its is the square root of 4*9 = sqrt(36) = 6
The geometric mean of 9 and 25 is: 15.0
The geometric mean of 9 and 81 is 27.0
Look 2 and 8, their geometric mean is square root of 16 which is 4 and between 2 and 54. 9 and 4 have a geometric mean of 6 which is also between 2 and 54. Is this what you mean? Pun intended... The geometric mean of 2 and 54 is square root of 108.
Geometric mean of 9 and 16 is 12. Look at link: "Calculation of the geometric mean of two numbers".
The geometric mean of 9 and 16 = square root of (9 x 16) = square root of 144 = 12.