Mathematics 1228A/B Lecture 4: 1.2-1.3 The Fundamental Counting Principle

• School: Western University
• Department: Mathematics
• Course: Mathematics 1228A/B
• Professor: Arash Pourkia

Document Summary

400 first year student were surveyed about their math classes. Linear algebra, 180 were taking calculus, 10 were in linear algebra, calculus, and. 20 were taking only calculus, 100 were in. Ex: complete the labeling of this counting tree. Three diagram can do more than help understand set intersections. They are very useful for organizing our choices to make counting easier. Consider 3 employees, heather, ian, jill, there are to be lined up for a promotional photo. We can even use tree diagrams to help us make rules for counting. The store has 2 dogs and 3 cats available. When you have cases (contradictory choices) either or but both , then to find the total number of choices, you add the cases. When you have subsequent choices to make and then to get the total number of choices, we multiply the individual choices.