INFO 150: A Mathematical Foundation for Informatics

Practice for Second Midterm Exam

David Mix Barrington

11 November 2016

Directions:

  Q1: 15 points
  Q2: 25 points
  Q3: 30 points
  Q4: 30 points
Total: 100 points

  • Question 1 (15): Briefly identify the following terms or concepts (3 points each):

  • Question 2 (25): Let T = {s, m, l} be a set of three dog treats (small, medium, and large) and let D = {a, b, c, d, e} be a set of five dogs (Arly, Biscuit, Cardie, Duncan, and Ebony}. Answer the following counting problems involving giving these treats to these dogs.

  • Question 3 (30): These are true/false questions about the scenario of Question 2, with no explanation needed or wanted and no penalty for guessing (3 points each):

  • Question 4 (30): In this problem we "throw 3D6", which means that we throw three independent fair six-sided dice, numbered {1, 2, 3, 4, 5, 6}, and add the results.

    Last modified 11 November 2016