4.1 Counting Principles
Select a l'ltrateg}.r to Solve :1 Counting Problem
Example 1. Hannah piayson her school soccer team. The soccer uniform has :. -': :sE'-: - " -'
red, white, and block, and Estes different snztts: red, white, and block. How ntant.r
33 Interseconaml Unionof'lwoSets ' i " I : ' L = 12: '1-51 EH-'35
Suppose the universal set U is dened as non-negative single digit numbers, set E is even numbers,
set L is whole numbers less than 7. and set 0 is odd numbers less than T. _ 3
O l) J 3
: Exglorig Relationshjg between Sets
plore Relationships between Sets
ample 1. There are 55 Grade 12 students. Of these students, 23 play yoileyball and 25 play basketball.
are are 31 students play neither sport. The following Venn diagram re presents the