A displayed minute contains one minute of possible start times, so the specified <uniform distribution> has <probability density function>
$$
\boxed{p(s)=\begin{cases}1,&0\leq s<1,\\0,&\text{otherwise}.\end{cases}}
$$
Endpoint choices for a <probability density function> do not affect any <probabilities>.

Solution

Past exam of the mathematics course of the year 1 of the natural sciences course of the University of Cambridge / 2024 / Paper 2 / 14 / a / i / Solution

 Solution (source code)