Infant mortality rate is the number of deaths under 1 year per: MCQ with Answer and Explanation

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Infant mortality rate is the number of deaths under 1 year per:

A. 1000 women

B. 1000 total births

C. 1000 live births

D. 1000 population

Answer: Option C

Solution (By JKSSB Mock Tests)

IMR = (Infant deaths / Live births) × 1000.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

For the above frequencies, Yule's coefficient of association Q is:

A. 0.5

B. 0.8

C. 0.33

D. 0.714

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Correct Answer: Option D

Explanation:
ad = 30×40 = 1200, bc = 20×10 = 200. Q = (1200-200)/(1200+200) = 1000/1400 = 0.714.

This question belongs to: Accountancy and Statistics Statistics

Question #2

The combined mean of two groups of sizes n₁ and n₂ with means x̄₁ and x̄₂ is given by:

A. (x̄₁/x̄₂) × (n₁ + n₂)

B. (n₁x̄₁ + n₂x̄₂)/2

C. (x̄₁ + x̄₂)/2

D. (n₁x̄₁ + n₂x̄₂)/(n₁ + n₂)

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Correct Answer: Option D

Explanation:
Combined mean is a weighted average.

This question belongs to: Accountancy and Statistics Statistics

Question #3

A box contains 5 defective and 15 non-defective items. Two items are drawn. The probability that both are non-defective is:

A. 15/20 × 14/19 = 21/38

B. 21/38

C. (15/20)²

D. 1 - (5/20)²

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Correct Answer: Option A

Explanation:
P(both non-defective) = (15/20)×(14/19) = 210/380 = 21/38.

This question belongs to: Accountancy and Statistics Statistics

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