\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Suppose \(X\) represents the waiting time (in minutes) for a bus, which follows a uniform distribution over \([0, 10]\), and its probability density function \(f(x)\) is shown in the graph below.
Using the graph, estimate the probability that the waiting time is 4 minutes or less.
\(P(0 \leq X \leq 4) =\)