Life tables are primarily used to compute: MCQ with Answer and Explanation

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Life tables are primarily used to compute:

A. Life expectancy

B. Population density

C. Migration rates

D. Fertility rates

Answer: Option A

Solution (By JKSSB Mock Tests)

Life tables synthesize mortality rates to derive life expectancy and survival probabilities.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

Yule's coefficient of association Q = (ad - bc) / (ad + bc). Here ad and bc refer to:

A. Total frequencies

B. Ultimate class frequencies product

C. Cross products of the 2×2 table

D. Frequencies of A and B only

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Correct Answer: Option C

Explanation:
ad = (AB)×(αβ), bc = (Aβ)×(αB), the cross-products of the frequencies.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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

A. 12

B. 6

C. 10

D. 8

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Correct Answer: Option D

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

This question belongs to: Accountancy and Statistics Statistics

Question #3

If the current WPI is 140 and base year WPI is 100, the inflation rate is:

A. 140%

B. 40%

C. 100%

D. 28.6%

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Correct Answer: Option B

Explanation:
Inflation rate = (140 - 100)/100 × 100% = 40%.

This question belongs to: Accountancy and Statistics Statistics

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