In a throw of a coin find the probability of getting a tail?  Options: A) 1 / 2 B) 1 / 3 C) 1 / 4 D) 2 / 5 E) 2 / 7

Rationale: "s = { h , t } e = { t } p ( e ) = 1 / 2 answer is a"
Answer: A