counting

  1. permutation
    selecting more than one item WITHOUT replacement and order is IMPORTANT
  2. combination
    selecting more than one item WITHOUT replacement and order is NOT IMPORTANT
  3. What is the difference between with and without replacement?
    • With replacement means the same item can be chosen more than once.
    • Without replacement means the same item cannot be selected more than once.
  4. What is an intersection?
    • The Intersection of two sets is the overlap of the sets;
    • what they both have in common.

    A intersect B = { x | x A and x B }
  5. What is a union?
    The Union of two sets consists of all elements in A or B or BOTH.
  6. What is mutually exclusive?
    nothing in common
Author
carolinc
ID
95409
Card Set
counting
Description
and more counting
Updated