Since it's mentioned that a person in the audience of a talk show has a 15% chance of winning free movie tickets, the rest of the percentage must be the chance that he may not win.
We get,
[tex]\text{Chance to win + Chance to lose = 100\%}[/tex][tex]\text{ 15\% + Chance to lose = 100\%}[/tex][tex]\text{ Chance to lose = 100\% - 15\%}[/tex][tex]\text{ Chance to lose = 85\%}[/tex]Therefore, the chance that the audience may not win is 85%.
