The accompanying table gives information on the type of coffee selected by someone purchasing a single cup at a particular airport.
Small Medium Large
Regular Coffee 14% 20% 26%
Black Coffee 20% 10% 10%
Consider randomly selecting such a coffee purchaser.
a. What is the probability that the individual purchased a small cup?
b. What is the probability that the individual purchased a cup of black coffee?
c. If we learn that the selected individual purchased a small cup, what now is
the probability that he/she chose black coffee, and how would you interpret this probability?
d. If we learn that the selected individual purchased black coffee, what now is the probability that a small size was selected?