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14_ExamFeedback

# 14_ExamFeedback - Tuesday Dr Daniel Hughes...

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CSC 30155 Tuesday 01/11/10 Dr. Daniel Hughes

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Today’s Lecture will be Short General Feedback on the Exam (15 mins) Specific Feedback on Questions (15 mins)
CSC 30155 General Exam Feedback Dr. Daniel Hughes

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Exam Feedback Some rules: Exam scores are private . Do not attempt to look at anyone else’s score or answers unless they offer. We will go through the exam together in detail. At the end of this session, the exams will be collected again and I will store them for safekeeping. You may now collect your marked exam from the desk at the front.
General Feedback You all performed very well I will have to make the next exam much harder! The average mark was 83% The lowest mark was 64% The highest mark was 94% Lets take a look at the distribution of marks between students

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Distribution of Marks Distribution of Marks 60 65 70 75 80 85 90 95 100 Student Percentage
Summary of Exam Marks You should all be proud of your performance . However, you should stay aware of your relative position in the class. Students usually find the next exam more difficult . Take a look at the averages for last year: Midterm 1 = 82% Midterm 2 = 67% (- 15 marks) Final Exam = 65% (- 17 marks)

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Average Marks Per Question Q1: Greedy Algorithms, Average = 21/25 Q2: Dynamic Programming, Average = 19/25 Q3: Lossless Compression, Average = 20/25 Average Marks Per Question 0 5 10 15 20 25 1 2 3 Average Mark out of 25
Average Marks Per Question Q1: Greedy Algorithms, chosen by 10 students Q2: Dynamic Programming, chosen by 8 students Q3: Lossless Compression, chosen by 8 students Question Selection 0 1 2 3 4 5 6 7 8 9 10 1 2 3 Number of Students Choosing Question

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