CTET Solved Paper - UTET April 2015 Paper2
- Option : D
- Explanation : (D) The mean of n observation is m.
if m2 - m + 1 is added to cach observation, then the mean will increase by m2 - m + 1,
Then new mean = m + m2 - m + 1
= (1 + m2)
*/?>
*/?>
*/?>
*/?>