21 * - In which situation the mean median and mode are equal if the values of all data elements in a distribution are not identical. In distributions with higher concentration of lower values and a long tail towards higher values. For perfectly symmetrical distributions of data. In distributions with higher concentration of larger values and a long tail towards lower values 23 * ?h-What is coefficient of variation It is the ratio of the standard deviation to the mean of a data set. O It is used to express the standard deviation as a percentage of the mean is especially useful when comparing data sets, which have different units. All of the above. O - If smaller data elements are to be given greater importance than the * larger data elements you should use Mode Mediano Arithmetic Mean None of the above