📐 Mathematics · Probability (Class 11) · JEE

Three fair coins are tossed. The probability of getting at least two tails is:

Answer: 1/2.

Correct answer: B. 1/2

Explanation: P(2 tails) + P(3 tails) = 3/8 + 1/8 = 1/2.

Concept context

Random experiments, sample space, events, and the axiomatic approach to probability