International Mathematical Olympiad 2001 (Washington DC, USA) Scores

At the 2001 IMO held in Washington DC, USA, 473 contestants from 83 countries competed. 39 gold medals were awarded to those scoring at least 30; 81 silver medals were awarded to those scoring from 20 to 29; and 122 bronze medals were awarded to those scoring from 11 to 19.

Further statistics are shown below. Detailed tables of results by country or contestant are available:

Total scores of each country, in descending order of total score (the IMO is an individual competition, so country orderings are unofficial only).
Total scores of each country, in alphabetical order.
Individual scores, in descending order of score.
Individual scores, in order of contestant code.

The maximum individual score possible was 42 (which 4 contestants attained). The mean individual score was 12.812, with a standard deviation of 10.140. The following table shows how many contestants attained each possible score.

Score	Number of contestants
42	4
41	1
40	0
39	1
38	0
37	3
36	7
35	2
34	2
33	7
32	5
31	5
30	2
29	6
28	7
27	1
26	7
25	4
24	8
23	14
22	10
21	11
20	13
19	6
18	13
17	8
16	16
15	17
14	18
13	13
12	16
11	15
10	19
9	15
8	19
7	16
6	15
5	20
4	17
3	34
2	31
1	17
0	28

The following table shows the maximum attainable score, mean score and standard deviation of scores for each individual question.

Question number	1	2	3	4	5	6
Maximum score	7	7	7	7	7	7
Mean score	3.645	1.550	0.877	3.233	2.729	0.778
Standard deviation	2.988	2.632	1.614	3.093	2.334	1.888

The following table shows the correlation coefficients between the scores on each pair of questions. To make sense of these figures you will probably wish to look at the problems themselves (from Mathlinks) to see which are on similar or different topics.

	1	2	3	4	5	6
1		0.404	0.316	0.500	0.524	0.364
2	0.404		0.289	0.325	0.365	0.385
3	0.316	0.289		0.274	0.263	0.339
4	0.500	0.325	0.274		0.375	0.319
5	0.524	0.365	0.263	0.375		0.423
6	0.364	0.385	0.339	0.319	0.423

The following table shows the distribution of scores on each individual question with the total number of each score on any question.

	Score 0	Score 1	Score 2	Score 3	Score 4	Score 5	Score 6	Score 7
Question 1	132	28	47	45	12	12	20	177
Question 2	311	40	15	9	11	7	3	77
Question 3	272	127	36	8	1	6	3	20
Question 4	147	79	34	11	15	6	8	173
Question 5	93	48	145	67	17	16	5	82
Question 6	380	20	16	8	10	9	3	27
Total	1335	342	293	148	66	56	42	556

Return to IMO Scores home page
Return to my mathematics page
Return to my home page

Contact: Joseph Myers (jsm@polyomino.org.uk)
Last updated: 5 January 2016

Score	Number of contestants
42	4
41	1
40	0
39	1
38	0
37	3
36	7
35	2
34	2
33	7
32	5
31	5
30	2
29	6
28	7
27	1
26	7
25	4
24	8
23	14
22	10
21	11
20	13
19	6
18	13
17	8
16	16
15	17
14	18
13	13
12	16
11	15
10	19
9	15
8	19
7	16
6	15
5	20
4	17
3	34
2	31
1	17
0	28

Score	Number of contestants
42	4
41	1
40	0
39	1
38	0
37	3
36	7
35	2
34	2
33	7
32	5
31	5
30	2
29	6
28	7
27	1
26	7
25	4
24	8
23	14
22	10
21	11
20	13
19	6
18	13
17	8
16	16
15	17
14	18
13	13
12	16
11	15
10	19
9	15
8	19
7	16
6	15
5	20
4	17
3	34
2	31
1	17
0	28

Score	Number of contestants
42	4
41	1
40	0
39	1
38	0
37	3
36	7
35	2
34	2
33	7
32	5
31	5
30	2
29	6
28	7
27	1
26	7
25	4
24	8
23	14
22	10
21	11
20	13
19	6
18	13
17	8
16	16
15	17
14	18
13	13
12	16
11	15
10	19
9	15
8	19
7	16
6	15
5	20
4	17
3	34
2	31
1	17
0	28