JEE Main 2019Medium
Q.The mean and variance of 8 observations are 9 and 9.5 respectively. If six of the observations are 6, 7, 10, 12, 12 and 8, then the remaining two observations are
a
4 and 13
b
5 and 12
c
3 and 14
d
2 and 15
Correct Answer: Option A
The correct solution involves applying the fundamental concept to derive the final value step by step...