Given the that variance of 50 observations is 18. If each of the 50 observations is increased by 2, then variance of new data is

Given the variance of 30 observations is 20. if each of the observations is divided by 2, then new variance of the resulting oservations is

Given the variance of 30 observations is 20. if each of the observations is divided by 2, then new variance of the resulting oservations is

The variance of 15 observations is 8. If each observation is multiplied by 4, then the variance of new observation is ……

The variance of 15 observations is 4. If each observations increased by 9 find the variance of the resulting observations.

The variance of 15 observations is 4. If each observations increased by 9 find the variance of the resulting observations.

The variance of 20 observations in 5 . If each of the observations is multplied ny 2 , find the variance of the resulting observations

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