(A) Median: - The median is the middle value when the data is ordered. It does not depend on all observations, as it only requires the middle value (s).(B) Mean:- The mean is calculated by Summing all observations and dividing by the number of observations. Therefore, it depends on all data points.(C) Range:- The range is the difference between the maximum and minimum values in the data set. It also does not depend on all observations.(D) Mode:- The mode is the value that appears most frequently in the data set. It does not require all observations, as it only depends on the frequency of values.