Classical

Business Statistics and Data Processing - Business Statistics MCQ

36:  

In which files records are stored one after another in an ascending or descending order determined by the key field of the records ?

A.

direct files

B.

sequential files

C.

both (A) & (B)

D.

None of these

 
 

Option: B

Explanation :


37:  
The amount of a certain product sold to a certain customer in a past period can be obtained from the:
A.

Customer file

B.

Sales hlstory file

C.

Inventory file

D.

All of the above

 
 

Option: C

Explanation :


38:  

Partial correlation is a type of

A.

Simple correlation

B.

Multiple correlation

C.

Both (A) and (B)

D.

None of these

 
 

Option: B

Explanation :


39:  
When variations in the values of two variables have a constant ratio, there will be
A.

Linear correlation

B.

Non-linear correlation

C.

Zero correlation

D.

None of the above

 
 

Option: A

Explanation :


40:  

The advantages of sequential files are

A.

Easy to organise, maintain and understand

B.

There is no overhead in address generation. Locating in a particular record requires only the specification of the key field

C.

Relatively inexpensive I/O media and devices can be used for the storage and processing of such files.

D.

All of the above

 
 

Option: D

Explanation :




Suggest an improvement