2004 AMC 8 Statistics

2004 AMC 8 General Statistics

Number of schools returning results	2,595
Number of Participants	154,590
Number of Female Participants	73,647
Number of Male Participants	78,265
.
Average Top Score	17.42
Overall average score	9.94
Average score of Female Participants	9.47
Average score of Male Participants	10.40
.
Average team score (sum of top 3 scores, 75 possible pts)	48.94

Table of Problem Difficulty for the 2004 American Mathematics Competition 8 Tabulation of responses by 154,590 Students Percent of Responses
PROBLEM	A		B		C		D		E		OMITS	?
1	1.55		90.53	*	3.9		1.23		2		0.52	0.01
2	6.2		44.49	*	37.88		9.79		0.88		0.7	0.05
3	72.69	*	14.59		6.81		2.83		1.81		1.21	0.07
4	3		51.14	*	20.95		12.47		11.36		0.99	0.09
5	11.06		2.78		18.75		59.14	*	7.67		0.52	0.08
6	19.45		16.44		51.62	*	6.57		4.48		1.38	0.06
7	2.34		46.05	*	5.63		41.36		3.78		0.7	0.14
8	25.02		51	*	10.38		4.7		7.09		1.68	0.14
9	9.86		13.53		14.28		38.66	*	21.01		2.58	0.09
10	3.37		6.38		5.09		23.85		60.21	*	0.96	0.14
11	6.14		19.75		60.74	*	7.24		4.44		1.62	0.07
12	24.8		21.74	*	15.25		24.83		10.9		2.38	0.09
13	33.94		7.61		14.17		17.67		24.43	*	1.99	0.18
14	13.11		27.26		37.25	*	14.97		4.05		3.27	0.1
15	14.81		15.04		36.74	*	15.51		15.62		2.17	0.12
16	5.55		9.5		20.25	*	7.06		54.29		3.2	0.15
17	5.57		21.54		25.79		23.72	*	19.86		3.35	0.17
18	41.93	*	6.8		18.67		20.98		6.47		4.97	0.18
19	21		36.62	*	17.42		9.51		8.29		7.03	0.13
20	12.33		21.12		26.08		24.29	*	9.38		6.67	0.13
21	11.18		18.48		19.22		25.22	*	18.69		7	0.2
22	10.06		16.2	*	13.3		9.92		42.22		7.95	0.35
23	38.6		9.04		8.91		21.48	*	13.69		7.97	0.31
24	15.15		20.06		24.99	*	15.7		12.38		11.57	0.14
25	15.87		24.33		15.87		13.12	*	19.33		11.34	0.14
( * ) Correct Response ( ? ) Response the computer was unable to read due to incomplete erasures or two answers marked for the same problem

Breakdown of Scores
Male/Female			Score	Grade
Male	Female	Total*	Score	5	6	7	8
41	8	50	25	0	1	9	40
74	18	93	24	0	3	26	64
151	37	189	23	3	10	38	138
282	90	375	22	4	20	93	255
412	155	574	21	3	24	122	418
599	242	849	20	6	37	186	614
933	398	1,346	19	6	59	345	928
1,365	670	2,059	18	13	85	520	1,421
1,929	985	2,954	17	22	139	799	1,965
2,711	1,485	4,262	16	30	215	1,187	2,792
3,409	2,183	5,690	15	25	266	1,580	3,755
4,360	3,227	7,708	14	30	397	2,171	5,016
5,387	4,269	9,824	13	40	558	2,961	6,157
6,439	5,527	12,168	12	53	783	3,807	7,399
7,335	6,866	14,427	11	91	1,065	4,670	8,439
7,902	7,754	15,941	10	110	1,377	5,509	8,760
8,134	8,407	16,845	9	131	1,804	5,895	8,815
7,774	8,605	16,690	8	187	2,003	6,040	8,282
6,707	7,823	14,793	7	187	2,021	5,423	6,997
5,218	6,228	11,655	6	204	1,702	4,283	5,329
3,620	4,323	8,082	5	154	1,250	3,058	3,514
2,052	2,551	4,691	4	96	841	1,704	1,984
912	1,158	2,108	3	63	359	822	843
299	412	729	2	20	160	269	271
84	97	184	1	11	39	56	73
15	13	29	0(@)	1	3	10	13
121	116	275	0 ($)	6	27	96	117
	(*) (@) ( $ ) Note:	Total includes students who failed to mark their gender These students attempted some of the problems These students attempted none of the problems Some students failed to indicate a grade