Question

a fair coin is tossed repeatedly. if tail appears on first four tosse,then the probability of head appering on the fifth tosse is equal to;a) 1/2b)1/32c)31/32d)`1/5

Answer 1

$$\begin{gathered} Totalnumberofoutcomesonthrowingacoin5times=2^5=32 \\ Numberoffavourableoutcomethatishavingfourtailsandthenhead=1 \\ P(getting{5}^{th}Headafter4tails)=\frac{1}{32} \end{gathered}$$