NDA2021MathematicsStatisticsActual
If the mean of a frequency distribution is 100 and the coefficient of variation is 45 % , then what is the value of the variance?
Options
- A2025
- B450
- C45
- D4 5
Correct answer
A. 2025
Step-by-step solution
Co-efficient of variation (C . V)=. S . D . Mean aligned & 45 100 = S . D . 100 S . D .=45 & Then, variance =(S . D .)^2=(45)^2=2025 aligned