Subject: General Aptitude · Chapter: Probability · Exam: · Marks: · Difficulty:
In a single throw of a die, what is the probability of getting a number greater than 4 ?
(a)$\frac{1}{2}$
(b)$\frac{1}{3}$
(c)$\frac{2}{3}$
(d)$\frac{1}{4}$
Answer
Answer (as printed): B
Explanation
When a die is thrown, we have $S=\{1,2,3,4,5,6\}$. Let $E=$ event of getting a number greater than $4=\{5,6\}$. $$\therefore \quad P(E)=\frac{n(E)}{n(S)}=\frac{2}{6}=\frac{1}{3} .$$
Explanation as extracted from the printed page; notation may be imperfect.