Which index satisfies both time reversal and factor reversal tests? MCQ with Answer and Explanation

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Which index satisfies both time reversal and factor reversal tests?

A. Simple aggregative

B. Fisher

C. Paasche

D. Laspeyres

Answer: Option B

Solution (By JKSSB Mock Tests)

Only Fisher's ideal index satisfies both tests.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

Which coefficient is commonly used to measure the association of attributes?

A. Spearman's rank coefficient

B. Fisher's coefficient

C. Karl Pearson's coefficient

D. Yule's coefficient of association

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Correct Answer: Option D

Explanation:
Yule's coefficient (Q) specifically measures the intensity of association between two dichotomous qualitative attributes.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Vital statistics are related to:

A. Births, deaths, and marriages

B. Industrial output

C. Agricultural production

D. Stock market

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Correct Answer: Option A

Explanation:
Vital statistics pertain to the recording of vital events like births, deaths, marriages, etc.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Which of the following pairs of events are independent?

A. Drawing two cards without replacement from a deck: A = first is an ace, B = second is an ace.

B. Rolling a die twice: A = first roll is 5, B = sum is 10.

C. Selecting a student from a class: A = student is male, B = student plays on the football team (all footballers are male).

D. Tossing a fair coin twice: A = first toss is head, B = second toss is tail.

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Correct Answer: Option D

Explanation:
Coin tosses are independent. In A, without replacement, not independent. In B, outcome of first affects probability of sum. In D, P(B|A) >0 but P(B|A')=0, so not independent.

This question belongs to: Accountancy and Statistics Statistics

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