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           2009 AMC8 Report for all schools in China                   

           Number of schools returning results       38
           Average of school highest score        19.37
           Average school team score              55.47

           # of State Student Participants         6499
           Overall State Average Score            11.16

                       Average Score by Grade level

                   Grade         # of Students  Average

                    5th             254           8.88
                    6th            1086           9.84
                    7th            2828          10.75
                    8th            2284          12.60



           Number of Female Students               2848
           Average Score of Female Students       10.61

                       Average Female Scores by Grade

                   Grade         # of Students  Average
                   5th              100           7.94
                   6th              475           9.32
                   7th             1258          10.36
                   8th              999          11.81



           Number of Male Participants             3563
           Average Score of Male Participants     11.63

                       Average score for Males by Grade

                   Grade         # of Students  Average
                   5th              153           9.53
                   6th              600          10.30
                   7th             1546          11.08
                   8th             1241          13.25




                     2009 American Mathematics Contest  8
                   Number of Students Achieving Indicated Score



                 SCORE        MALE       FEMALE       TOTAL*
                  25            6                         6
                  24           18            3           21
                  23           18            4           22
                  22           23            9           32
                  21           27            9           38
                  20           54           18           73
                  19           53           29           82
                  18          119           45          164
                  17          142           72          217
                  16          161          103          270
                  15          238          130          371
                  14          257          194          458
                  13          307          220          533
                  12          318          242          565
                  11          314          310          629
                  10          347          307          663
                   9          320          308          634
                   8          263          260          531
                   7          198          201          408
                   6          158          173          331
                   5          110          105          224
                   4           71           56          133
                   3           30           31           62
                   2            4           11           15
                   1            4            1            5
                   0  (@)
                   0  ($)       3            7           12



           (@)  These students attempted some of the problems
           ($)  These students attempted none of the problems
           (*)  Total includes students who failed to mark their gender

                         2009 American Mathematics Contest  8
                             Number of Students by Grade
                              Achieving indicated Score



            SCORE   5th Grade    6th Grade    7th Grade    8th Grade
              25                       2                         4
              24                       3            3           15
              23                                    5           17
              22                       4            6           22
              21                       5            8           25
              20          1            7           21           44
              19                       5           23           54
              18          1           16           62           85
              17          8           19           68          122
              16          3           23          103          138
              15          6           45          148          172
              14          9           47          171          228
              13         17           62          246          205
              12          8           84          259          210
              11         22           95          300          207
              10         19          118          314          206
               9         31          125          305          169
               8         29          120          247          133
               7         27           94          193           86
               6         34           88          135           71
               5         21           61          108           33
               4          9           37           65           21
               3          8           18           25            9
               2                       5            7            3
               1                       2            3
               0(@)       1            1            3            5
               0($)



           (@)  These students attempted some of the problems
           ($)  These students attempted none of the problems

           Note:  Some students failed to indicate a grade





                         2009 American Mathematics Contest  8
                             Number of Schools with 3+ students
                              Achieving team Scores



            SCORE   school count
              75          1
              72          2
              69          2
              68          1
              67          1
              65          1
              64          1
              63          2
              62          1
              59          1
              58          2
              57          1
              56          1
              55          2
              54          2
              53          2
              52          2
              51          2
              50          1
              49          2
              48          1
              47          1
              45          1
              44          1
              43          1
              39          1
              37          1
              30          1







                   Table of Item Difficulty for the 2009
                      American Mathematics Contest  8
                 Tabulation of responses by    6499 Students
                             Percent of Responses


    ITEM    A         B         C         D         E       OMITS       ?
    ____  _____     _____     _____     _____     _____     _____     _____

      1    0.09      0.35      4.45      1.18     93.71*     0.22      0.00
      2    5.79      9.20     16.03     61.32*     4.20      3.46      0.00
      3   12.54      4.37     76.15*     4.15      1.58      1.08      0.12
      4    7.79     69.47*     6.34      9.71      5.08      1.52      0.09
      5    3.45      4.91     12.46     72.03*     5.11      1.95      0.09
      6   73.35*     6.54      5.19      5.14      7.35      2.37      0.06
      7    1.94      5.14     70.96*     8.11     11.22      2.52      0.11
      8    8.05     59.98*    11.36     10.20      7.60      2.72      0.09
      9   13.23     25.08*    20.90     21.48     10.28      8.96      0.08
     10    4.88     14.45     30.54     32.91*    12.74      4.40      0.08
     11    7.99     15.54     16.16     36.14*    15.96      8.12      0.09
     12   14.23     21.03     20.80     30.22*     8.03*     5.55      0.12
     13    7.32     52.36*    10.11     12.34     12.49      5.20      0.17
     14    8.22     39.48*    28.42     11.25      6.48      6.09      0.06
     15   13.60     14.08     18.30     34.41*    10.28      9.28      0.06
     16   21.25     13.73     20.62     22.79*    13.91      7.62      0.09
     17   12.08     24.88*    22.40     19.88     10.16     10.48      0.12
     18   13.11      9.68     51.25*    12.09      7.08      6.62      0.17
     19   17.42     16.66     18.74     22.74*    15.57      8.60      0.26
     20    9.97     23.96     12.14     29.25*    14.65      9.86      0.17
     21   16.05     29.59     17.99     15.77*     8.00     12.49      0.11
     22   11.71     16.53     18.51     33.87*    10.66      8.29      0.43
     23   10.45     29.51*    18.94     20.10      9.77     11.03      0.20
     24   10.02     11.99     14.85     12.09     41.34*     9.28      0.43
     25   11.42     13.11     24.53     20.06     17.26*    13.43      0.18


   (*)  Correct Response

   (?)  Response the computer was unable to read due to incomplete
        erasures or two answers marked for the same problem