If A and B are two attributes, the symbol (α) denotes: MCQ with Answer and Explanation

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If A and B are two attributes, the symbol (α) denotes:

A. Number possessing attribute A

B. Number possessing both A and B

C. Number not possessing attribute A

D. Number possessing neither A nor B

Answer: Option C

Solution (By JKSSB Mock Tests)

α (alpha) is the negation of A; (α) is the number of items that do not possess attribute A.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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If the crude death rate of population A is higher than B, but after age-standardization A's rate is lower, this indicates:

A. B has a higher mortality at every age

B. Standardization is wrong

C. A has a younger age structure

D. A has an older age structure

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Correct Answer: Option D

Explanation:
When an older population produces a higher crude rate despite lower age-specific rates, it is due to age confounding.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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Infant Mortality Rate (IMR) is the number of deaths of infants under one year per:

A. 1000 population

B. 1000 live births

C. 1000 children

D. 1000 women

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Correct Answer: Option B

Explanation:
IMR = (Infant deaths < 1 year / Live births) × 1000.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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In a frequency distribution, if the mean is 50, median is 48, and mode is 45, the distribution is likely:

A. Symmetrical

B. Bimodal

C. Positively skewed

D. Negatively skewed

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Correct Answer: Option C

Explanation:
In a positively skewed distribution, mean > median > mode due to the pull of extreme high values; here, 50 > 48 > 45 aligns with this pattern, indicating right-skewness.

This question belongs to: Accountancy and Statistics Statistics

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