We have the next information:
Total of people surveyed = 300
Students who prefer action movies = 90 + 30 = 120
Students who go to the movies twice a month or less = 90 + 132 = 222
a)
Percentage of students who prefer action movies = (Students who prefer action movies/Total of people surveyed) * 100
Replacing on the formula:
Percentage of students who prefer action movies = (120/300)*100
Then:
Percentage of students who prefer action movies = 40%
b)Percentage of students who go to the movies twice a month or less =
(Students who go to the movies twice a month or less/Total of people surveyed)*100
Replacing on the formula:
Percentage of students who go to the movies twice a month or less =
(222/300)*100
Percentage of students who go to the movies twice a month or less = 74%