Final answer:
If the requirement is to not have duplicate ratings on a scale of 1-10, the answer is 'True'. However, in many scoring systems such as classroom quizzes, duplicates are a common occurrence and can indicate similar levels of performance among the subjects being rated.
Step-by-step explanation:
The question seems to relate to a scoring system in which a scale of 1-10 is used for assessing something termed as 'AS scores'. If the requirement is not to have duplicate ratings, then the answer would be 'True'—if we are to understand that each score from 1 to 10 must be unique for a set of items being rated. However, without further context, it is important to note that in many scoring systems, duplicate scores are permissible, and in a classroom setting such as quizzes results, duplicates are not just possible but also likely.
For example, in Table 1.9 Scores for quizzes, it is common for multiple students to score the same out of 10 on a quiz. Therefore, ensuring no duplicates in a general classroom setting might not be realistic. When assigning numbers on a scale from 1 to 10 for evaluation purposes, duplicates often indicate similar levels of performance or preference, which can be a significant data point.