Question

What is the probability of getting a prime number on rolling a dice once?

• A. 0.5

Answer 1

The correct option is A 0.5
Possible outcomes when a die is rolled are {1, 2, 3, 4, 5, 6}.

Number of favourable outcomes = n{2, 3, 5} = 3

$\therefore$ Probability of getting a prime number

$=\frac{3}{6}$

$=\frac{1}{2}$