Matrix A is said to be orthogonal if

A. Transpose of A= -A
B. Multiplicative inverse of A = -A
C. Transpose of A= Multiplicative inverse of A
D. None of these
View Answer

C. Transpose of A= Multiplicative inverse of A

x- is called

A. Deviation
B. Variance
C. Standard deviation
D. None of these
View Answer

A. Deviation