To find the percentage of students who chose pizza, we need to divide the number of students who chose pizza by the total number of students polled, and then multiply by 100.
The total number of students polled is 35, and the number who chose pizza is 16. So the percentage of students who chose pizza is:
(16/35) x 100% = 45.7%
Rounded to the nearest tenth, the answer is 45.7%. Therefore, approximately 45.7% of the students polled chose pizza as their favorite food.