Classical

Statistics and methodology - Statistics and Methodology Multiple Choice Questions

76:  

The information technology choice is a

A.

Strategic decision

B.

Co-ordinated decision

C.

Planned decision

D.

Directed decision

 
 

Option: A

Explanation :

Click on Discuss to view users comments.

Write your comments here:



77:  

Which of the following statement is/are true?

A.

The basic understanding of the processes is essential even though the technology is a significant factor in a good design of information systems.

B.

The business management process has changed from function management to process management.

C.

The development of modern information system is a complex process.

D.

All of the above.

 
 

Option: D

Explanation :

Click on Discuss to view users comments.

Write your comments here:



78:  

Match the following

List-I (Types of system) List-II (Elements)

(A) Data processing 1. Sales

(B) Transaction processing 2. Process management

(C) Functional system 3. Focus on computing

(D) Integrated 4. Transaction execution

A.

(A) (B) (C) (d)

1    4    3    2

B.

(A) (B) (C) (d)

3    4    1    2

C.

(A) (B) (C) (d)

1    2    3    4

D.

(A) (B) (C) (d)

1    3    2    4

 
 

Option: B

Explanation :

Click on Discuss to view users comments.

Write your comments here:



79:  

If covariance of X and Y is 12.3, variance of X is 16.4 and variance of Y is 13.8, then r will be

A.

+0.79

B.

+0.82

C.

+0.80

D.

+0.83

 
 

Option: B

Explanation :

Hence the answer is (b).

Click on Discuss to view users comments.

Write your comments here:



80:  

Eight coins are tossed together and the occurrence of a head is termed a success. Write down the Binomial distribution of probabilities for the occurrence of 0, 1, 2....8 heads. What is the arithmetic mean and what is the variance of this distribution?

A.

2

B.

9

C.

3

D.

5

 
 

Option: A

Explanation :

P = 1/2, q = 1/2, n = 8

Mean = np

= 8 x 1/2 = 4

Variance (σ)2 = npq

or         8 x 1/2 x 1/2 = 2

Click on Discuss to view users comments.

Write your comments here:






*********
X