MDM4U0
Counting Techniques
For each of the following questions, decide whether or not the elements can be
repeated or not. Use the appropriate counting technique to solve the problem.
1. In Ontario, licence plates consist of 4 letters followed by 3 number
MDM4U0
Organized Counting
Example 1: Draw a tree diagram for the following to determine the number of
possible outcomes.
a) Buying an iPod, you have a choice of 4 colours and then 3 headphone options
b) To get to school you can either walk or skateboard t
MDM4U0
Factorials and Permutations
From last class -Example: The names of 8 students are placed into a hat. One
name is chosen at a time, and then removed. In how many
different ways can the names be chosen?
What you have calculated here is called a facto
ANSWERS
For answers containing diagrams or graphs, refer to the
Student e-book.
13. a)
46%
b)
80%
c)
3.3% d) 225% e) 137.5%
Section 1.1, pp. 1013
CHAPTER 1
1. a)
Practise
1. a) iterative
b) iterative
d) iterative
e) non-iterative
3. The order of winners m