The complement of the event 'at least one head' in two coin tosses is: MCQ with Answer and Explanation

Question

Share Report Error

The complement of the event 'at least one head' in two coin tosses is:

A. At least one tail

B. Exactly one head

C. Two heads

D. No heads (both tails)

Answer: Option D

Solution (By JKSSB Mock Tests)

Complement of 'at least one head' is 'no heads'.

This question belongs to: Accountancy and Statistics Statistics

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Statistics Questions

Question #1

Neonatal mortality rate covers deaths of infants aged:

A. 0-1 year

B. 1 month to 1 year

C. 0-7 days

D. 0-28 days per 1000 live births

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
Neonatal period is the first 28 days of life. NMR = (Neonatal deaths / Live births) × 1000.

This question belongs to: Accountancy and Statistics Statistics

Question #2

If the price index for 2020 with base 2015 is 125, and for 2025 with base 2020 is 120, the index for 2025 with base 2015 using chain method is:

A. 145

B. 140

C. 150

D. 125 × 1.2 = 150

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
Chain index = 125 × (120/100) = 125 × 1.2 = 150.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Paasche's price index formula is:

A. Σp₁q₁ / Σp₀q₁ × 100

B. Σp₁q₁ / Σp₀q₀ × 100

C. Σp₁q₀ / Σp₀q₀ × 100

D. Σp₁(q₀+q₁) / Σp₀(q₀+q₁) × 100

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option A

Explanation:
Paasche index uses current period quantities: Σp₁q₁ / Σp₀q₁ × 100.

This question belongs to: Accountancy and Statistics Statistics

Explore All Statistics MCQs