\(\displaystyle{P}=\frac{{{\underset{{{w}{a}{n}{t}{e}{d}}}{{{N}}}}}}{{{\underset{{{a}{l}{l}}}{{{N}}}}}}\)

Where P is the experimental probability and N is the amount of outcomes.

Substitute:

a) \(\displaystyle{P}=\frac{{1}}{{6}}\)

b) \(\displaystyle{P}=\frac{{3}}{{6}}=\frac{{1}}{{2}}\)

Where P is the experimental probability and N is the amount of outcomes.

Substitute:

a) \(\displaystyle{P}=\frac{{1}}{{6}}\)

b) \(\displaystyle{P}=\frac{{3}}{{6}}=\frac{{1}}{{2}}\)