Answer: 
(a) 26 % 
(b) 48% 
Step-by-step explanation: 
The total number of students is 


(a). 
The total number of students that go to the movies three times or more is 

Therefore, the percentage is 


(b). 
The total number of students that prefer action movies is 

therefore, the percentage is 

Hence, to summerise: 
(a) 26 % 
(b) 48%