Question 1

What is the result if the matrix X is subtracted from matrix Y?

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)   C

Question 2

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)   D

Question 3

Which of the following statements concerning the definition of matrices is NOT true?

Accepted Answer

A)  The number at an intersection of a row and column is referred to as a value 
B)  A matrix can consist of any number of rows and columns 
C)  A matrix with the same number of rows as columns is called a square matrix 
D)  The size of a matrix is given by number of rows and columns (e.g. a by b matrix) 
A)  The number at an intersection of a row and column is referred to as a value 
B)  A matrix can consist of any number of rows and columns 
C)  A matrix with the same number of rows as columns is called a square matrix 
D)  The size of a matrix is given by number of rows and columns (e.g. a by b matrix) A

Question 4

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 5

A company has two offices represented by the matrices A and B. Each records the number of female and male staff and the number of managers and non-managers. Which option below represents the total number of female staff employed by the firm?

Accepted Answer

A)  5 
B)  20 
C)  53 
D)  73 
A)  5 
B)  20 
C)  53 
D)  73

Question 6

In the following matrix 'A', what is the value of A1,2 ?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  2 
A)  3 
B)  4 
C)  5 
D)  2

Question 7

A manufacturing company has a particularly error-prone machine and records the number of faults over 50 items (1 day's production). In the transition matrix T the number of times an error was produced is recorded, along with the result of the next item. Which option is the correct proportional transition matrix?

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 8

If a 3x2 matrix is multipled by a 2x5 matrix what is the size of the resulting matrix?

Accepted Answer

A)  3x5 
B)  3x2 
C)  2x5 
D)  2x2 
A)  3x5 
B)  3x2 
C)  2x5 
D)  2x2

Question 9

Which of the following options for matrix C is the result of C = A*B?

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 10

Accepted Answer

A)  96 
B)  72 
C)  30 
D)  24 
A)  96 
B)  72 
C)  30 
D)  24

Exam 36: Matrices

What is the result if the matrix X is subtracted from matrix Y?

Which of the following statements concerning the definition of matrices is NOT true?

A company has two offices represented by the matrices A and B. Each records the number of female and male staff and the number of managers and non-managers. Which option below represents the total number of female staff employed by the firm?

In the following matrix 'A', what is the value of A1,2 ?

If a 3x2 matrix is multipled by a 2x5 matrix what is the size of the resulting matrix?

Which of the following options for matrix C is the result of C = A*B?

Introduction to Business Mathematics and Statistics

Sampling and Data Collection

Data and Their Accuracy

Frequency Distributions and Charts

General Charts and Graphs

Arithmetic Mean

Median

Mode and Other Measures of Location

Measures of Dispersion and Skewness

Standard Deviation

Quantiles and the Quartile Deviation

Linear Functions and Graphs

Regression Techniques

Correlation Techniques

Time Series Model

Time Series Trend

Seasonal Variation and Forecasting

Index Relatives

Composite Index Numbers

Special Published Indices

Interest and Depreciation

Present Value and Investment Appraisal

Annuities

Functions and Graphs

Linear Equations

Quadratic and Cubic Equations

Differentiation and Integration

Cost, Revenue and Profit Functions

Set Theory and Enumeration

Introduction to Probability

Conditional Probability and Expectation

Combinations and Permutations

Binomial and Poisson Distributions

Normal Distribution

Linear Inequalities

Inventory Control

Network Planning and Analysis

Filters