If two events are exhaustive, then: MCQ with Answer and Explanation

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If two events are exhaustive, then:

A. P(A∪B) = 1

B. P(A) = P(B)

C. P(A∩B) = 0

D. A and B are independent

Answer: Option A

Solution (By JKSSB Mock Tests)

Exhaustive events cover the entire sample space.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

Post-neonatal mortality refers to deaths from:

A. 28 days to 1 year

B. 0-28 days

C. 0-7 days

D. 1-5 years

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Correct Answer: Option A

Explanation:
Post-neonatal period is from 28 days to 1 year.

This question belongs to: Accountancy and Statistics Statistics

Question #2

The arithmetic mean of a data set is not a good representative if:

A. Data are symmetric

B. Data are large

C. Data are normally distributed

D. Data have extreme outliers

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Correct Answer: Option D

Explanation:
Outliers distort the mean; median is preferred in such cases.

This question belongs to: Accountancy and Statistics Statistics

Question #3

If Laspeyres index = 125 and Paasche index = 120, Fisher's index is approximately:

A. 122.5

B. 123.0

C. 121.0

D. 122.47

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Correct Answer: Option D

Explanation:
Fisher = √(125 × 120) = √15000 ≈ 122.474.

This question belongs to: Accountancy and Statistics Statistics

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