In a throw of a coin find the probability of getting a head?
Choose the correct choice from the following answers:
A) 1 / 2
B) 1 / 3
C) 1 / 4
D) 2 / 3
E) 2 / 5

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