Question 2 Which one of the following is NOT correct about a non-singular matrix A? This always hold true: AA-AAl-/ All the columns and also rows of A are linearly independent. A can be any matrix as long as it is full rank matrix. A is invertible matrix. A is a full-rank matrix.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section: Chapter Questions
Problem 2DE
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Plzz explain both question. Ty
Non-zero covariance between two random variables in the presence of bi-variate normality always implies statistical independence
Whereas on the other side, statistical independence between variables always implies zero correlation, irrespective of the statistical
distribution between the two variables.
True
B
False
Question 2
Which one of the following is NOT correct about a non-singular matrix A?
This always hold true: A"A=AA-1-/
All the columns and also rows of A are linearly independent.
(cC) A can be any matrix as long as it is full rank matrix.
A is invertible matrix.
A is a full-rank matrix.
Transcribed Image Text:Non-zero covariance between two random variables in the presence of bi-variate normality always implies statistical independence Whereas on the other side, statistical independence between variables always implies zero correlation, irrespective of the statistical distribution between the two variables. True B False Question 2 Which one of the following is NOT correct about a non-singular matrix A? This always hold true: A"A=AA-1-/ All the columns and also rows of A are linearly independent. (cC) A can be any matrix as long as it is full rank matrix. A is invertible matrix. A is a full-rank matrix.
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