The median of a set of 9 distinct observations is 20.5. If each of the largest 4 observations of the set is increased by 4, then the median of the new set

The median of a set of nine distinct observations is 20.5. If each of the last four observations of the set is increased by 2, then the median of the new set is

The median of a set of nine distinct observations is 20.5. If each of the last four observations of the set is increased by 2, then the median of the new set is

Statement-1 : The median of a set of 9 distinct observations is 20.5. if each of the largest 4 observations of the set Is increased by 2 then median of new set remains the same as that of the original. Statement-2 : If the variable of a series are arranged in ascending or descending order, then the value of the middle variable is defined as median .

If the median of 25 observations is 45 and if the observations greater than the median are increased by 4, then the median of the new data is

The arithmetic mean of a set of observations is bar(X) . If each observation is divided by alpha and then is increased by 10, then the mean of the new series is

The mean of a set of observations is a . If each observation is multiplied by b and each product is decreased by c , then the mean of new set of observations is

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

In a set of 2n distinct observations, each of the observations below the median of all the observations is increased by 5 and each of the remaining observation is decreased by 3 . Then the mean of the new set of observations

If each observation of a raw data whose variance is sigma is multiplied by h, then the variance of the new set is

The mean of a certain number of observations is 35. What is the new value of the mean if each observation is : increased by 20%