Jee Main
Statistics
JEE Main 2026 (Online) 28th January Morning Shift
MCQ+4 / -12026
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