MATH 350 Quiz 03

1. Let $A \subset S$. Describe the sets defined by
   • $A \cap A^c$
   • $A \cup A^c$
2. Consider the sample space $S$ of the $26$ letters of the English alphabet with a Uniform distirbution defined on $S$. What is the probability assocated with the subset consisting of just the $5$ vowels, $E = \{a, e, i, o, u\}$?