Poisson Process & Poisson Distribution Walkthrough | Built In

SOLVED: 2.3. Customers depart from bookstore according to a Poisson Process, at a rate of 21 customers per hour. If each customer purchases a book with a probability of 0.35, independent of all other factors, find the distribution of the time until the first sale of a book. What is the probability that no books are sold during a particular hour? Find the expected number of customers who buy a book in a particular hour.

Applications of the Poisson Process | Introduction to Probability | Electrical Engineering and Computer Science | MIT OpenCourseWare