Q. The coefficient of variation cannot be meaningfully used to compare the variability of two or more sets of data, when (Solved)
1. The standard deviation is zero for one or more sets of data
2. The standard deviation is 1 for one or more sets of data
3. The mean is zero for one or more sets of data
4. The mean is 1 for one or more sets of data
- c. The mean is zero for one or more sets of data