Statistics: Information available as of Last Update (bottom of page) ============================================= Statistics for Exam 1 [Feb 15, 2016] ============================================= Points = 0 to 110 Aver = 72.5 StDev = 17.7 Median = 75 Max = 100-110 Min = 0-40 Exam 1 Comments: If you got less than 50 consider withdrawal from the course; otherwise you need to study much harder in the next 2-3 weeks prior to the midterm If you missed problem 5 (PS1 problem) it means you did not pay much attention to the Problem Sets. It will cost you more than 20% next time. If you got 90pts or more or less than 90 pts ... practice your reading skills: as "space efficiency" excludes merge sort... as an option Problem 1 was supposed to be a bonus problem ... Stay clear of problems whose grade points involve greek letters such as epsilon, varepsilon, etc. Try Problem 6 instead of Problem 7! ============================================= Statistics for Exam 2 ============================================= Points = 0 to 345 Aver = 191 StDev = 51 Median = 203 Max = 280 to 345 Min = 0 to 100 Note : The Exam 2 grade recorded is 6 points more than the one indicated in your paper. Exam 2 comments: Problem 3.(2) Mis-solving the merge-sort recurrence is inexcusable! Problem 4. You will encounter this problem in the final and in every midterm and final i have ever given at NJIT... Do not lose points.... Linear in n solutions or quadratic are ...... Problem 8 is a variation from a PS. Practice with PS problems or ... Problem 9. This was supposed to be easy. It ended up a disaster. Problem 10. You can do better. ============================================= Statistics for Exam 3 ============================================= Points = 0 to 345 Aver = 199 StDev = 54 Median = 198 Max = 270-345 Min = 0-50 ============================================= Definitions Definitions =========== =========== Average = Sum of grades divided by number of exams Stand Deviation = Shows dispersion of grades. Roughly, 2/3 of the grades are within 75 +/- 20 , and 95% within 75 +/- 2*20 if ave is 75 and std 20 Median = Half of the students got that much or less (and half, more than that). Last Update: May 15, 2016