If the maximum number of people the pub can accommodate is 50, it remains open for 9 hours (2 PM to 11 PM), and the Maximum number of people (which is 50) occurs from 6 PM to 7 PM. Taking the distribution is Normal Distribution and the Average sitting time 1 Hour. What is the approximate footfall of the Pub during the entire day?
I can't understand how to approach this problem, or do I miss any necessary information to solve this problem?