48%
Explanation:
Well the most a Percentage can go to is 100%
We know :
33% chose Vanilla
and
19% chose Chocolate
Basically just add them together:
33 + 19 = 52
Now, Subtract the total percentage from the total number of people that voted for Chocolate AND Vanilla:
100 - 52 = 48
Final Answer: 48% chose a flavor other than Vanilla or Chocolate.
Hope this Helps!
:)