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           2009 AMC8 Report for all schools in Hong Kong               

           Number of schools returning results        4
           Average of school highest score        19.75
           Average school team score              54.50

           # of State Student Participants          213
           Overall State Average Score            11.50

                       Average Score by Grade level

                   Grade         # of Students  Average

                    6th               4          12.00
                    7th              33          10.61
                    8th             174          11.66



           Number of Female Students                 89
           Average Score of Female Students       10.98

                       Average Female Scores by Grade

                   Grade         # of Students  Average
                   6th                1          20.00
                   7th                8          10.00
                   8th               80          10.96



           Number of Male Participants              119
           Average Score of Male Participants     11.87

                       Average score for Males by Grade

                   Grade         # of Students  Average
                   6th                3           9.33
                   7th               25          10.80
                   8th               90          12.27




                     2009 American Mathematics Contest  8
                   Number of Students Achieving Indicated Score



                 SCORE        MALE       FEMALE       TOTAL*
                  25
                  24
                  23
                  22
                  21            1                         1
                  20            1            1            2
                  19            2            2            4
                  18            2            1            3
                  17            4            2            6
                  16            7            2            9
                  15            7            5           12
                  14           15            6           22
                  13           14           11           25
                  12            9           11           22
                  11           14            7           23
                  10           17           11           28
                   9            8            8           16
                   8            5            7           12
                   7            7            5           12
                   6            1            6            7
                   5            3                         3
                   4            1            3            4
                   3                         1            1
                   2            1                         1
                   1
                   0  (@)
                   0  ($)



           (@)  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
              24
              23
              22
              21                                                 1
              20                       1                         1
              19                                    1            3
              18                                                 3
              17                                                 6
              16                                    1            8
              15                                    2           10
              14                                    2           20
              13                       1            3           21
              12                                    1           20
              11                                    3           20
              10                       1            8           18
               9                                    5           11
               8                                    1           11
               7                                    4            8
               6                                    2            5
               5                       1                         2
               4                                                 4
               3                                                 1
               2                                                 1
               1
               0(@)
               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
              58          1
              57          1
              53          1
              50          1







                   Table of Item Difficulty for the 2009
                      American Mathematics Contest  8
                 Tabulation of responses by     213 Students
                             Percent of Responses


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

      1    0.00      0.00      2.35      1.41     96.24*     0.00      0.00
      2    0.47      1.88      2.82     93.90*     0.47      0.47      0.00
      3    7.98      0.94     88.26*     1.41      1.41      0.00      0.00
      4    4.23     78.87*     2.82      8.45      5.16      0.47      0.00
      5    4.69      5.63     15.02     69.01*     3.29      2.35      0.00
      6   78.87*     4.23      3.29      4.23      8.92      0.47      0.00
      7    3.76      7.98     50.23*    12.68     23.47      1.88      0.00
      8   20.66     37.56*    25.82      5.63      9.39      0.94      0.00
      9    8.92     43.19*    16.90     17.84     10.33      2.82      0.00
     10    4.69     16.43     13.15     58.22*     7.04      0.47      0.00
     11    8.45     15.96     26.76     25.82*    17.37      5.63      0.00
     12   17.37     22.07      7.51     45.54*     6.57*     0.94      0.00
     13    6.10     75.59*     6.10      7.98      3.29      0.94      0.00
     14    1.88     14.08*    72.77      7.04      0.94      2.82      0.47
     15   18.31     15.49     10.33     38.03*    14.55      3.29      0.00
     16   27.70     18.31     19.72     19.25*    11.27      3.76      0.00
     17   15.02     23.47*    17.37     18.31     16.90      8.45      0.47
     18   19.25      6.10     47.42*    15.49      8.45      2.82      0.47
     19    9.39     13.15     15.96     32.86*    24.88      3.76      0.00
     20   11.27     34.27     12.21     24.88*    13.62      3.76      0.00
     21   14.55     36.15     18.78     15.96*     7.51      6.57      0.47
     22   10.33     15.96     23.94     24.88*    20.19      4.69      0.00
     23   15.02     29.11*    16.90     17.37     11.74      9.39      0.47
     24   16.90     19.25     17.37     19.25     18.78*     8.45      0.00
     25   12.21     15.49     24.88     16.90     19.72*    10.80      0.00


   (*)  Correct Response

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