\[\boxed{\mathbf{102.}}\]
\[Всего\ исходов,\ когда\ сумма\ \]
\[равна\ 8,\ пять:\]
\[2 + 6;3 + 5;4 + 4;5 + 3;6 + 2.\]
\[\textbf{а)}\ 3 + 5:\]
\[\frac{1}{5}.\]
\[\textbf{б)}\ 3 + 5;5 + 3:\]
\[\frac{2}{5}.\]
\[\textbf{в)}\ 2 + 6;3 + 5;4 + 4:\]
\[\frac{3}{5}.\]
\[\textbf{г)}\ 0.\]