A fair 10 sided dice, with faces numbered 1-10, is rolled once. What is the probability that the number rolled will be prime? Express your answer as a common fraction.

Respuesta :

In numbers 1 through 10, there are 4 primes. So, the fraction would be:
[tex] \frac{4}{10} [/tex]

This can be simplified to:
[tex] \frac{2}{5} [/tex]

That's your answer!