1

Consider matrix A =

24	8
10	6
16	5
5	4
20	12

The dimensions of A are ____ x ____ :

2

The Covariance of matrix A is:

58	16.75
16.75	10

The sum of the eigenvalues for this Covariance Matrix is:

3

Consider a hypothetical correlation matrix:

1	-.57
-.57	1

What is the sum of the eigenvaluesof this correlation matrix?

4

Again consider matrixA =

24	8
10	6
16	5
5	4
20	12

The dimensions of the transpose of A (i.e., t(A)or A`) are ____ x ____ .