SIA - Combinations & Permutations

  • On the calculator: 
    • Math -> prob -> 
    • nPr (for permutations) 
    • nCr (for combinations) 
  • Perm v. comb - 
    • Combination - 
    • Order doesn’t matter 
      • Choosing toppings for a pizza 
    • Permutations -
    • Order does matter 
      • Lining up players for a sport 
      • Passwords, lineups, roles