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

A. 31/32
B. 1/16
C. 1/2
D. 1/32

Explanation:

Let P(T) be the probability of getting least one tail when the coin is tossed five times.

= There is not even a single tail.
i.e. all the outcomes are heads.
= 1/32 ; P(T) = 1 – 1/32 = 31/32