Question

A coin is tossed thrice. The probability of getting a head on the second toss given that a tail has occurred in at least two tosses is

• A. $\dfrac{1}{2}$
• B. $\dfrac{1}{16}$
• C. $\dfrac{1}{8}$
• D. $\dfrac{1}{4}$
• E. $\dfrac{1}{3}$

Answer 1

Answer: (D)

$\dfrac{1}{4}$

Answer 2

Given that:

As per the question , the coin tossed thrice so,
The favorable outcomes for the event are THT and HHT.

Total outcome is $8$ .

Hence, the required probability is $\dfrac{2}{8} =\dfrac{1}{4}$ (_Ans)