Statistics (ISMC 2013)

1. General

Number of Participants: 273

Junior Participants: 142 (School Team; Individual Participants)

Form 1: 67 (56; 11)

Form 2: 75 (68; 7)

Senior Participants: 131 (School Team; Individual Participants)

Form 3: 51 (50; 1)

Form 4: 80 (69; 11)

Number of School Teams: 60

2. Junior Individual

(a) Cutting Scores

Champion: 168

1st Runner-up: 155

2nd Runner-up: 130

Merit (4th - 13th): 83 - 112

Honorable Mention: 19 - 80

(b) Short Questions

(d) Overall

3. Senior Individual

(a) Cutting Scores

Champion: 136

1st Runner-up: 134

2nd Runner-up: 117

Merit (4th - 13th): 56 - 104

Honorable Mention: 23 - 56

(b) Short Questions

(d) Overall

4. Group Event

(a) Cutting Scores

1st Place: 182

2nd Place: 168

3rd Place: 150

4th - 8th Place: 120 - 144

# They are not referring to the overall places. Moreover, In ISMC 2013, we did not set any prizes solely based on the results of Group Event.

(b) Statistics

# Although we have set a list of markings guidelines before the contest begins, higher mean or median does not necessarily reflect easier difficulty, as different markers have their own requirements or restrictions on writings & calculations. (BUT, each question is marked by only 1 marker to ensure the fairness.)

5. Overall Prizes

Overall Score of a Team: (sum of score of 4 team members in individual event) + 4 x (Score of group event)

Full Score of (Sum of Individual Scores) = 800

Full Score of Group Event = 300

Full Score of Overall Score = 2000

Cutting Scores

6. Comments on Performance

i. Most participants are good in guessing, which can be solved without any straight-forward calculation. (Example: Junior Q.15, Senior Q.8)

ii. Although combinatorics algorithm is not taught in Junior Mathematics Lesson, over one-third Junior participants can solve Junior Q.10, which requires dividing cases. It is well-done.

iii. Poor performance in Section B. Reasons behind maybe: Participants prefer to finish Section A first rather than attempting problems in Section B, which requires writing procedures; The problems in Section B are more difficult, most problems require algorithms which participants did not know.

iv. For Senior Q.19, more than a half of all participants can get at least 10 marks (Full Score in (a)), it implies that many participants can memorize and relate the question to some geometrical method (e.g. similar triangles). 8 of them can solve this questions perfectly. It is very good.