A life table radix l₀ of 100,000 means: MCQ with Answer and Explanation

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A life table radix l₀ of 100,000 means:

A. Number of deaths

B. The population size

C. Life expectancy

D. A hypothetical cohort of 100,000 births

Answer: Option D

Solution (By JKSSB Mock Tests)

l₀ is the initial number of individuals in the life table cohort.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

Combined mean formula is essential when:

A. Calculating mode

B. Merging means from groups of different sizes

C. All groups have the same size

D. Data is qualitative

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Correct Answer: Option B

Explanation:
Combined mean = (n₁x̄₁ + n₂x̄₂) / (n₁ + n₂) weights each group's mean by its size, providing the correct overall mean when aggregating subgroup statistics.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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

A. P(A ∩ B) = 0

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

C. P(A ∪ B) = 1

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

Which is a difference between primary and secondary data?

A. Secondary data is more reliable always

B. Primary data is collected for the specific purpose at hand

C. Primary data is cheaper than secondary data

D. Primary data requires less time

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Correct Answer: Option B

Explanation:
Primary data is gathered specifically for the study, while secondary data was collected for some other purpose.

This question belongs to: Accountancy and Statistics Statistics

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