jee-main 2019 Q74

jee-main · India · session2_08apr_shift1 3x3 Matrices Direct Determinant Computation
The mean and variance for seven observations are 8 and 16 respectively. If 5 of the observations are $2, 4, 10, 12, 14$, then the product of the remaining two observations is
(1) 48
(2) 45
(3) 49
(4) 40
The mean and variance for seven observations are 8 and 16 respectively. If 5 of the observations are $2, 4, 10, 12, 14$, then the product of the remaining two observations is\\
(1) 48\\
(2) 45\\
(3) 49\\
(4) 40