Question

The probability of getting a prime number when a die is rolled is .

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

Answer 1

The correct option is B $\frac{1}{2}$

Possible outcomes when a die is rolled are {1, 2, 3, 4, 5, 6}.
Number of favourable outcomes = n{2, 3, 5} = 3
Probability of getting a prime number $=\frac{3}{6}$
$=\frac{1}{2}$