In a popular online role playing game, players can create detailed designs for their character's "costumes," or appearance. Mariam 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. 148 visitors purchased no costume. 107 visitors purchased exactly one costume. 3 visitors purchased more than one costume. Based on these results, express the probability that the next person will purchase no more than one costume' as a fraction in simplest form.

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To determine the probability that the next person will purchase no more than one costume, follow these steps:

1. **Calculate the Total Number of Visitors:**
   $$
   \text{Total visitors} = 148 \ (\text{no costume}) + 107 \ (\text{one costume}) + 3 \ (\text{more than one costume}) = 258
   $$

2. **Determine the Number of Favorable Outcomes:**
   - Purchasing no more than one costume includes both purchasing no costume and purchasing exactly one costume.
   $$
   \text{Favorable outcomes} = 148 + 107 = 255
   $$

3. **Express the Probability as a Fraction:**
   $$
   \text{Probability} = \frac{255}{258}
   $$

4. **Simplify the Fraction:**
   - Find the greatest common divisor (GCD) of 255 and 258, which is 3.
   $$
   \frac{255 \div 3}{258 \div 3} = \frac{85}{86}
   $$

So, the probability that the next person will purchase no more than one costume is:

$$
\boxed{\dfrac{85}{86}}
$$
The probability is $$\frac{85}{86}$$.

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