We have the following:
When a coin is tossed there are only two possibilities. Head or tails, therefore, the probability is
[tex]p=\frac{1}{2}[/tex]now, the probability that both will land on the head is the product of the probability that they will head off, thus
[tex]\begin{gathered} p=\frac{1}{2}\cdot\frac{1}{2}=\frac{1}{4} \\ 0.25\cdot100=25 \end{gathered}[/tex]The probality is 1/4 or 25%