14_ExamFeedback - CSC 30155 Tuesday 01/11/10 Dr. Daniel...

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Unformatted text preview: CSC 30155 Tuesday 01/11/10 Dr. Daniel Hughes daniel.hughes@xjtlu.edu.cn Todays Lecture will be Short l General Feedback on the Exam (15 mins) l Specific Feedback on Questions (15 mins) CSC 30155 General Exam Feedback Dr. Daniel Hughes daniel.hughes@xjtlu.edu.cn Exam Feedback l Some rules: l Exam scores are private . Do not attempt to look at anyone elses score or answers unless they offer. l We will go through the exam together in detail. l At the end of this session, the exams will be collected again and I will store them for safekeeping. l You may now collect your marked exam from the desk at the front. General Feedback l You all performed very well I will have to make the next exam much harder! l The average mark was 83% l The lowest mark was 64% l The highest mark was 94% l Lets take a look at the distribution of marks between students Distribution of Marks Distribution of Marks 60 65 70 75 80 85 90 95 100 Student Percentage Summary of Exam Marks l You should all be proud of your performance . l However, you should stay aware of your relative position in the class. l Students usually find the next exam more difficult . Take a look at the averages for last year: l Midterm 1 = 82% l Midterm 2 = 67% (- 15 marks) l Final Exam = 65% (- 17 marks) Average Marks Per Question l Q1: Greedy Algorithms, Average = 21/25 l Q2: Dynamic Programming, Average = 19/25 l Q3: Lossless Compression, Average = 20/25 Average Marks Per Question 5 10 15 20 25 1 2 3 Average Mark out of 25 Average Marks Per Question l Q1: Greedy Algorithms, chosen by 10 students l Q2: Dynamic Programming, chosen by 8 students l Q3: Lossless Compression, chosen by 8 students Question Selection 1 2 3 4 5 6 7 8 9 10 1 2 3 Number of Students Choosing Question Question Performance...
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This note was uploaded on 05/22/2011 for the course CSC 30155 taught by Professor Garyli during the Spring '11 term at University of Liverpool.

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14_ExamFeedback - CSC 30155 Tuesday 01/11/10 Dr. Daniel...

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