The geometric mean and harmonic mean of two non negative observations are 10 and 8 res[ectovely. Then what is the arithmetic mean of the observations equal to?

The harmonic mean and the geometric mean of two numbers are 10 and 12 respectively. What is their arithmetic mean?

What is the geometric mean of the observations 125, 729, 1331 ?

The arithmetic mean and geometric mean of two numbers are 14 and 12 respectively. What is the harmonic mean of the numbers

For two observations, the sum is S and product is P. What is the harmonic mean of these two observations?

The arithmetic mean of 12 observations is 15. If two observations 20 and 25 are removed then the arithmetic mean of remaining observations is

Suppose arithmetic mean of "10" observations is "10" and variance is "40." Further let arithmetic mean and variance of "6" observations from these "10 observations be "6" and "20" respectively.Then the variance of remaining observations is

The arithmetic of 12 observations is 15. If two observations 20 and 25 are removed then the arithmetic mean of remaining observations is

a,g,h are arithmetic mean, geometric mean and harmonic mean between two positive number x and y respectively. Then identify the correct statement among the following

The arithmetic mean of 11 observations is 11. The arithmetic mean of the first 6 observations is 10.5 and the arithmetic mean of the last 6 observations is 11.5. What is the sixth observation ?