Type:-1 Variance of Individual Observations

Type:-1Variance of Individual Observations

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 variance of 20 observations is 5. if each observation is multiplied by 2, find the new variance of the resulting observations.

The variance of 20 observations is 5. If each observation is multiplied by 2, find the new variance of the resulting observations.

The variance of 25 observations is 4. If 2 is added to each observation, then the new variance of the resulting observation is

The variance of 20 observations is 5. If each observation is multiplied by 2, find the new variance of the resulting observations.

The variance of 20 observations is 5. If each observation is multiplied by 2, find the new variance of the resulting observations.