A burger franchise planning a new outlet in Boston uses a triangular distribution to model the future weekly sales. They estimate that the minimum weekly sales is $1000 and the maximum is $6000. They also estimate that the most likely outcome is around $3000. So, the distribution is TRIA (1000, 3000, 6000). What's the probability of having the weekly sales being less than $2,500. (Round your answer with 3 decimal points)