Question

A die is thrown once.find the probability of getting a prime number less than $5.$

• A. $\frac{7}{3}$
• B. $\frac{5}{3}$
• C. $\frac{2}{3}$
• D. $\frac{1}{3}$

Answer 1

Answer: (D)

$\frac{1}{3}$

Sample space of throwing

a die once $=\{1,2,3,4,5,6\}$.

Prime no. less than $5=\{2,3\}$.

Probability $=\frac{Favourableoutcomes}{Totaloutcomes}=\frac{2}{6}=\frac{1}{3}$.