Answer:
The low-attendance day falls on an autumn Wednesday, while the high-attendance day falls on a summer Saturday.
Step-by-step explanation:
There are no rare class of goods which do not follow the Law of Demand
The most probable reason may be the dates are at different time period, when the demand is lower and therefore the price must be lower to generate enought attendance to make it profitable. While, the second date is onpeak demand.