This initial question was not answered. How do I best betermine how many new members?
Leaders of a local club want to focus on recruiting and looked through their recruiting and membership paperwork. They realized that over the past 30 years of annual open-house events, they spoke to four people who were interested enough in joining to take an application packet home. The historical probability P(X) that the interested prospective members would join is below.
0 join: 0.1 1 join: 0.2 2 join: 0.4 3 join: 0.2 4 join: 0.1
When they hold an open house this year, how many members (what is the expected value) should they anticipate joining?