Let A be a matrix with 5 rows and 2 columns. Which of the following operations are illegitimate? 1. t(A) %*% t(A) O 2. A %*% t(A) 3. A %*% A 4. A * A 5. t(A) %*% A 6. nrow(A)*A

Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
Section: Chapter Questions
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QUESTION 6
Let A be a matrix with 5 rows and 2 columns. Which of the following operations are illegitimate?
1. t(A) %*% t(A)
2.
A %*% t(A)
3. A %*% A
4. A * A
5. t(A) %*% A
6. nrow(A)*A
Transcribed Image Text:QUESTION 6 Let A be a matrix with 5 rows and 2 columns. Which of the following operations are illegitimate? 1. t(A) %*% t(A) 2. A %*% t(A) 3. A %*% A 4. A * A 5. t(A) %*% A 6. nrow(A)*A
QUESTION 5
Consider a linear regression model where the learned parameters are b0 = -0.01 and b1 = -2.58. What is the predicted output
at x0 = -25.79?
%3D
Transcribed Image Text:QUESTION 5 Consider a linear regression model where the learned parameters are b0 = -0.01 and b1 = -2.58. What is the predicted output at x0 = -25.79? %3D
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