Returns the average grade of all results as a percent.
	
	API Tags:
  
    | Return: | Grade average. | 
  
    | Access: | public | 
		
		
	
 
	
    | | integer getByCourseId(
integer
$id 
) | 
 | 
 
	Populates the ResultSet with all Results pertaining to the given course.
			Parameters:
			
					| integer | $id: | The Id of the Course whose results we are to find. | 
				
	
	API Tags:
  
    | Return: | Number of questions found | 
  
    | Access: | public | 
		
		
	
 
	
    | | integer getByCourseOfferingId(
integer
$id 
) | 
 | 
 
	Populates the ResultSet with all Results pertaining to the given course offering.
			Parameters:
			
					| integer | $id: | The Id of the CourseOffering whose results we are to find. | 
				
	
	API Tags:
  
    | Return: | Number of questions found | 
  
    | Access: | public | 
		
		
	
 
	
    | | integer getByLearningId(
integer
$id 
) | 
 | 
 
	Populates the ResultSet with all Results pertaining to the given learning quiz.
			Parameters:
			
					| integer | $id: | The Id of the Learning whose questions to find. | 
				
	
	API Tags:
  
    | Return: | Number of results found | 
  
    | Access: | public | 
		
		
	
 
	
    | | integer getByLearningOfferingId(
integer
$id 
) | 
 | 
 
	Populates the ResultSet with all Results pertaining to the given  learning offering's quiz.
			Parameters:
			
					| integer | $id: | The Id of the Learning Offering whose results we are to find. | 
				
	
	API Tags:
  
    | Return: | Number of results found | 
  
    | Access: | public | 
		
		
	
 
	
    | | integer getByUserIdAndCourseOfferingId(
integer
$userId, integer
$courseOfferingId 
) | 
 | 
 
	Populates the ResultSet with all Results pertaining to the given user and course offering.
			Parameters:
			
					| integer | $userId: | The Id of the User whose results we are to find. | 
					| integer | $courseOfferingId: | The Id of the Course Offering whose results we are to find. | 
				
	
	API Tags:
  
    | Return: | Number of questions found | 
  
    | Access: | public |