The Consumer Price Index for Industrial Workers (CPI-IW) is published by: MCQ with Answer and Explanation

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The Consumer Price Index for Industrial Workers (CPI-IW) is published by:

A. Reserve Bank of India

B. Labour Bureau, Shimla

C. Central Statistics Office

D. NITI Aayog

Answer: Option B

Solution (By JKSSB Mock Tests)

The Labour Bureau compiles CPI-IW.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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A bag contains 3 red, 5 black balls. Two balls are drawn at random. The probability that they are of different colors is:

A. 1/2

B. 15/28

C. 3/8

D. 15/56

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Correct Answer: Option B

Explanation:
Total ways C(8,2)=28. 1 red 1 black = 3×5=15. Probability=15/28.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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A card is drawn from a well-shuffled deck of 52 cards. The probability that it is a jack or a spade is:

A. 17/52

B. 4/13

C. 1/4

D. 16/52

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Correct Answer: Option D

Explanation:
P(jack)=4/52, spade=13/52, jack of spades=1/52. P=4/52+13/52-1/52=16/52.

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Question #3

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Conditional probability P(A|B) is defined only when:

A. P(A) > 0

B. A and B are independent

C. P(B) > 0

D. A and B are mutually exclusive

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Correct Answer: Option C

Explanation:
The definition P(A|B) = P(A∩B)/P(B) requires P(B) > 0.

This question belongs to: Accountancy and Statistics Statistics

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