A fair coin is tossed until a head appears. The probability that it takes exactly 3 tosses is: MCQ with Answer and Explanation

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A fair coin is tossed until a head appears. The probability that it takes exactly 3 tosses is:

A. 1/2

B. 1/4

C. 3/8

D. 1/8

Answer: Option D

Solution (By JKExamLibrary)

Sequence: T, T, H. Probability = (1/2)² * (1/2) = 1/8.

This question belongs to: Accountancy and Statistics Statistics

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