Chapter 5 - Section 5.2 - Assess Your Understanding - Vocabulary and Skill Building - Page 276: 23

$P(not$ $Titleist)=0.55$

$N(Titleist)=9$, $N(Maxfli)=8$ and $N(Top-Flite)=3$ Let S be the sample space. $N(S)=N(Titleist)+N(Maxfli)+N(Top-Flite)=9+8+3=20$ $P(Titleist)=\frac{N(Titleis)}{N(S)}=\frac{9}{20}=0.45$ $P(not$ $Titleist)=1-P(Titleist)=1-0.45=0.55$