Net migration rate is calculated as the difference between in-migrants and out-migrants per: MCQ with Answer and Explanation

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Net migration rate is calculated as the difference between in-migrants and out-migrants per:

A. Square kilometer

B. Working-age population

C. 1000 population

D. 1000 births

Answer: Option C

Solution (By JKSSB Mock Tests)

Net migration rate = (Immigrants - Emigrants) / Mid-year population × 1000.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

For a set of positive numbers, the harmonic mean is always:

A. Less than or equal to geometric mean

B. Equal to the median

C. Greater than geometric mean

D. Greater than arithmetic mean

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Correct Answer: Option A

Explanation:
For positive numbers, AM ≥ GM ≥ HM. So HM ≤ GM.

This question belongs to: Accountancy and Statistics Statistics

Question #2

For two independent events A and B, P(A)=0.2, P(B)=0.5. P(A∪B) is:

A. 0.1

B. 0.7

C. 0.5

D. 0.6

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Correct Answer: Option D

Explanation:
P(A∪B) = 0.2+0.5 - (0.2×0.5) = 0.7 - 0.1 = 0.6.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Sturges' rule for the number of classes k is:

A. k = 1 + 2.322 log₁₀ N

B. k = log₁₀ N

C. k = 1 + 3.322 log₁₀ N

D. k = 3.322 log₁₀ N

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Correct Answer: Option C

Explanation:
The formula k = 1 + 3.322 log₁₀ N gives an approximate optimal number of classes.

This question belongs to: Accountancy and Statistics Statistics

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