Example: Steve is 30 years old American. He is very shy, withdrawn, extremely helpful, and has little interest in the social world. He has a need for order and structure and a passion for detail. What occupation is Steve more likely to have? (Sales man or librarian) There are over 13,000,000 salespeople in the United States and a total of only 138,000 librarians. Put another way, out of a population of 13,138,000, where everyone is employed as either a salesman or librarian , the odds are 98% to 1.1% that anyone you randomly meet on the street would be a salesman vs librarian.
