A coin is tossed live times. What is the probability that there is at the least one tail?

Answer: Option A

Let P(T) be the probability of getting least one tail when the coin is tossed five times.
$$P\left(\overline{T}\right)$$ = There is not even a single tail.
i.e. all the outcomes are heads.
$$\begin{array}{rl}& P\left(\overline{T}\right)=\frac{1}{32}\\ & P\left(T\right)=1-\frac{1}{32}\\ & =\frac{31}{32}\end{array}$$