JEE Main 202628 Jan, Morning shiftMathematicsEasyStatistics and Probability258× since 2002
The mean and variance of 10 observations are 9 and 34.2, respectively. If 8 of these observations are 2, 3, 5, 10, 11, 13, 15, 21, then the mean deviation about the median of all the 10 observations is