For two attributes, the number of ultimate class frequencies is: MCQ with Answer and Explanation

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For two attributes, the number of ultimate class frequencies is:

A. 8

B. 2

C. 9

D. 4

Answer: Option D

Solution (By JKSSB Mock Tests)

With two attributes, there are 2² = 4 mutually exclusive classes (AB, Aβ, αB, αβ).

This question belongs to: Accountancy and Statistics Statistics

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Correct Answer: Option B

Explanation:
Fisher's index is called ideal because it satisfies time reversal and factor reversal tests.

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Correct Answer: Option A

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Correct Answer: Option C

Explanation:
Perinatal mortality covers late fetal deaths (stillbirths) and early neonatal deaths (first 7 days).

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