Marketing and Consumer Behavior Dinner customers at the Primanti Brothers restaurant in Pittsburgh, Pennsylvania, often experience a long wait for a table. For a randomly selected customer who arrives at the restaurant between 6:00 p.m. and 7:00 p.m., the waiting time (in minutes) is a continuous random variable such that
Suppose a dinner customer is randomly selected.
a. What is the probability that the person must wait for a table for at most 20 minutes?
b. What is the probability that the person must wait for a table for over one half-hour?
c. What is the probability that the person must wait for a table for between 15 and 30 minutes?