If (A)=60, (B)=40, N=100, and attributes are independent, then (AB) should be: MCQ with Answer and Explanation

If (A)=60, (B)=40, N=100, and attributes are independent, then (AB) should be:

A. 20

B. 30

C. 100

D. 24

Answer: Option D

Expected (AB) = (A)×(B)/N = 60×40/100 = 24.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

The base year for the current series of Wholesale Price Index (WPI) introduced in 2017 is:

A. 2017-18

B. 2015-16

C. 2004-05

D. 2011-12

Correct Answer: Option D

Explanation:
The base year of the revised WPI series launched in 2017 is 2011-12.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

The process of editing in data processing refers to:

A. Arranging data in tables

B. Drawing graphs

C. Calculating averages

D. Checking and correcting data for errors

Correct Answer: Option D

Explanation:
Editing involves scrutiny of data to detect and correct errors.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

Chain base index numbers compare each period with:

A. An average period

B. The first period

C. The immediately preceding period

D. A fixed base period

Correct Answer: Option C

Explanation:
Chain base indices use link relatives, where each period is the base for the next.

This question belongs to: Accountancy and Statistics Statistics