For homework 3 following grading scheme was followed.
Qn1. K Means - 12 pts
Qn2. Hierarchical - 8 pts
Qn3. Text Classification - 10 pts
Qn4. Collaborative Filtering - 10 pts
Qn5. Paper Discussion - 10 pts
The statistics for homework 3 are
Total - 50
Max - 50
Min - 21
Mean - 44.74
Std. Dev. - 7.36
Please let me know if you have any questions regarding the grading.