Life expectancy at birth increased from 60 to 65 years. This indicates: MCQ with Answer and Explanation

Life expectancy at birth increased from 60 to 65 years. This indicates:
A. Mortality has decreased only for the elderly
B. Everyone will live 5 years longer
C. The oldest person will live to 65
D. A newborn today is expected to live 5 years longer on average than a newborn in the past, assuming current mortality rates
Answer: Option D
Solution (By JKExamLibrary)
Life expectancy is a period measure reflecting current mortality conditions; an increase means improved survival across ages, raising the average projected lifespan for new births under present rates.

This question belongs to: Accountancy and Statistics Statistics

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If P(A)=0.2 and P(B)=0.5, and A, B are independent, then P(A∩B) is:
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Correct Answer: Option B


Explanation:
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The harmonic mean of 2, 3, and 6 is:
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B. 2.8
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The Census of India 2011 was the:
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Correct Answer: Option D


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