414 f18exam1sol.pdf - STAT 418 MID-TERM EXAMINATION 1 FALL...

STAT 418 MID-TERM EXAMINATION 1 FALL, 2018
Your name (in BLOCK letters):
Your signature:
Your PSU ID Number:
Instructions:
1. Turn off all electronic devices ! Any student whose electronic device rings, vibrates, or
makes any sound during the exam shall turn in their paper and leave the room immediately.
2. Please verify that your exam paper contains all six questions.
3. You may use a calculator and one sheet of notes. You may not use any books or share a
calculator with another student.
4. Illegible handwriting will not be graded!
5. To earn partial credit, explain your arguments carefully and show all your work. If you
need extra paper then please write on the back of your paper.
6. The instructors or teaching assistants will answer no questions during the exam period.
Simply explain any error you may find in a question and proceed to the next question.
DO NOT WRITE BELOW THIS LINE
Question Points
1
2
3
4
5
6
Total
1

Problem 1. [This problem is based on Self-Test Exercise 3, p. 20, in the textbook.]
A president, treasurer, and secretary, all different, are to be chosen from a club consisting
of 14 people (whose names are Ann, Bob, Cate, Don, Eda, Fran, Gail, Hal, Iona, Jane, Kate,
Leo, Mary, and Nan). How many different choices of officers are possible if:
(a) There are no restrictions?
(b) Ann and Bob will not serve together?
(c) Cate and Don will serve together or not at all?
(d) Eda must be an officer?
SOLUTION: