A dice is thrown, what is the probability that it is an odd prime number? Thank you!

Nov 13, 2016

$\frac{1}{3}$ or 33 1/3%

Explanation:

The odd prime numbers that could appear on a die roll are $3$ and $5$ (note that $1$ is not considered a prime).

Since theer are $6$ possible roll outcomes,
the probability of an odd prime is $2$ out of $6$ or $\frac{2}{6} = \frac{1}{3}$.
(Often probability is expressed as a percentage in which case 1/3=33 1/3%)