The crude birth rate of a population is 30 per 1000 and crude death rate is 8 per 1000. The natural increase rate is: MCQ with Answer and Explanation

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The crude birth rate of a population is 30 per 1000 and crude death rate is 8 per 1000. The natural increase rate is:

A. 22 per 1000

B. 2.2%

C. 3.75%

D. 38 per 1000

Answer: Option A

Solution (By JKSSB Mock Tests)

Natural increase = CBR - CDR = 30-8 = 22 per 1000.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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For a dataset with values 2, 4, 8, 16, 32, the geometric mean is:

A. 12

B. 10

C. 8

D. 6

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Correct Answer: Option C

Explanation:
Product = 32768. (32768)^(1/5) = 8 (since 8^5 = 32768).

This question belongs to: Accountancy and Statistics Statistics

Question #2

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Two events A and B are said to be mutually exclusive if:

A. P(A ∩ B) = 0

B. P(A ∪ B) = 1

C. P(A|B) = P(A)

D. P(A ∩ B) = P(A) × P(B)

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Correct Answer: Option A

Explanation:
Mutually exclusive events cannot occur simultaneously, meaning their intersection is the empty set (probability is zero).

This question belongs to: Accountancy and Statistics Statistics

Question #3

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Paasche price index is calculated as:

A. Σ(p₁q₁)/Σ(p₀q₁) × 100

B. Σ(p₁q₀)/Σ(p₀q₀) × 100

C. Σ(p₁q₁)/Σ(p₀q₀) × 100

D. √[Σ(p₁q₀)/Σ(p₀q₀) × Σ(p₁q₁)/Σ(p₀q₁)] × 100

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Correct Answer: Option A

Explanation:
Paasche index = Σ(p₁q₁)/Σ(p₀q₁) × 100, using current period quantities (q₁) as weights, which may understate inflation due to substitution effects but reflects current consumption patterns.

This question belongs to: Accountancy and Statistics Statistics

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