Topics to Study for Exam 2

1. Study every question in Quizzes 3 & 4
2. Use combination to find the number of elements in the sample space
3. Use combination or permutation to find the number of elements in the event
4. Find probability = |event| / |sample space|
5. Write a relation, R, in a matrix format and decide whether :
   • the relation is symmetric
   • the relation is reflexive
   • the relation is transitive (Find R2 to make a decision)
   This is HW11.
6. Binomial Expansion - HW16