In a popular online role playing game, players can create detailed designs for their character's "costumes," or appearance. Camden sets up a website where players can
buy and sell these costumes online. Information about the number of people who
visited the website and the number of costumes purchased in a single day is listed
below.
206 visitors purchased no costume.
87 visitors purchased exactly one costume.
4 visitors purchased more than one costume.
Based on these results, express the probability that the next person will purchase
exactly one costume as a fraction in simplest form.