The intersection of an event A and its complement A' is: MCQ with Answer and Explanation

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The intersection of an event A and its complement A' is:

A. Complement A'

B. Event A

C. Sample space (S)

D. Null set (Φ)

Answer: Option D

Solution (By JKSSB Mock Tests)

An event and its complement are mutually exclusive; they cannot occur simultaneously, so their intersection is empty.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

The index that is most widely used to measure changes in the cost of living is:

A. GDP deflator

B. CPI

C. Sensex

D. WPI

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Correct Answer: Option B

Explanation:
Consumer Price Index measures retail price changes and reflects cost of living.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Perinatal mortality rate per 1000 total births is 35. If there were 700 late fetal deaths and early neonatal deaths combined, the number of total births (live births + stillbirths) is:

A. 35,000

B. 20,000

C. 24,500

D. 2,000

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Correct Answer: Option B

Explanation:
Rate = (perinatal deaths / total births) × 1000 => 35 = 700 / total births × 1000 => total births = 700,000/35 = 20,000.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Consider the following: 1. CPI-IW is compiled by Labour Bureau. 2. CPI-Rural, Urban, Combined base year is 2012. 3. CPI basket includes both goods and services. Which of the above is/are correct?

A. 1 and 3 only

B. 2 and 3 only

C. 1 and 2 only

D. 1, 2 and 3

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Correct Answer: Option D

Explanation:
All three statements are factually correct.

This question belongs to: Accountancy and Statistics Statistics

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