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           2010 AMC8 Report for all schools in Missouri                

           Number of schools returning results       33
           Average of school highest score        18.09
           Average school team score              48.09

           # of State Student Participants         1945
           Overall State Average Score             9.12

                       Average Score by Grade level

                   Grade         # of Students  Average

                    5th              32           8.22
                    6th             180           9.01
                    7th             639           9.02
                    8th            1073           9.19



           Number of Female Students                835
           Average Score of Female Students        8.80

                       Average Female Scores by Grade

                   Grade         # of Students  Average
                   5th               11           7.09
                   6th               76           8.17
                   7th              257           8.96
                   8th              485           8.82



           Number of Male Participants             1065
           Average Score of Male Participants      9.37

                       Average score for Males by Grade

                   Grade         # of Students  Average
                   5th               21           8.81
                   6th               97           9.81
                   7th              367           9.07
                   8th              569           9.50




                     2010 American Mathematics Contest  8
                   Number of Students Achieving Indicated Score



                 SCORE        MALE       FEMALE       TOTAL*
                  25            3            2            5
                  24            2                         2
                  23            2                         2
                  22            6            1            7
                  21            1            5            6
                  20            5                         5
                  19            6            4           10
                  18            8            2           11
                  17           17            2           20
                  16           18            9           27
                  15           24            7           32
                  14           29           13           44
                  13           55           29           85
                  12           76           59          135
                  11           85           69          156
                  10          109          100          216
                   9          141          123          272
                   8          139          125          271
                   7          118          106          229
                   6           93           80          177
                   5           71           52          126
                   4           30           33           66
                   3           19            9           28
                   2            5            1            6
                   1            1            1            2
                   0  (@)       1                         1
                   0  ($)       1            3            4



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

                         2010 American Mathematics Contest  8
                             Number of Students by Grade
                              Achieving indicated Score



            SCORE   5th Grade    6th Grade    7th Grade    8th Grade
              25                                    1            3
              24                                                 2
              23                                                 2
              22                       1            2            4
              21                       1            4            1
              20                       1            2            2
              19                                    7            3
              18                       2            4            4
              17          1            2            6           11
              16          1            4            9           13
              15                       4           12           16
              14                       4           10           29
              13          1           10           30           43
              12          2            9           38           86
              11                      11           54           88
              10                      23           56          134
               9          9           17           96          147
               8          4           20           85          157
               7          5           22           77          124
               6          3           24           58           91
               5          3           15           46           61
               4          3            7           24           32
               3                       2           12           14
               2                                    3            3
               1                                    1            1
               0(@)                    1            2            2
               0($)



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

           Note:  Some students failed to indicate a grade





                         2010 American Mathematics Contest  8
                             Number of Schools with 3+ students
                              Achieving team Scores



            SCORE   school count
              75          1
              70          1
              64          1
              63          2
              60          1
              58          1
              57          2
              56          1
              54          2
              52          1
              51          2
              48          2
              46          1
              43          1
              42          3
              41          1
              39          3
              38          1
              37          1
              36          1
              35          2
              32          1







                   Table of Item Difficulty for the 2010
                      American Mathematics Contest  8
                 Tabulation of responses by    1945 Students
                             Percent of Responses


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

      1    1.34      3.39     93.01*     1.39      0.51      0.36      0.00
      2    6.12      2.31      2.42     64.27*    23.80      1.03      0.05
      3    8.38     26.58     57.58*     4.83      1.03      1.59      0.00
      4    7.76     11.67     59.49*    13.42      7.04      0.62      0.00
      5    7.92     64.99*     8.69      7.10     10.08      1.13      0.10
      6    5.04      5.91      2.88      9.67     75.89*     0.51      0.10
      7   37.12     32.90*    10.13      7.15     11.83      0.87      0.00
      8   25.35     24.42     23.55     18.87*     4.99      2.72      0.10
      9   13.73      7.87     34.14     36.71*     6.17      1.34      0.05
     10   18.30     21.18*    19.38     21.59     17.48      1.90      0.15
     11   21.13     54.34*     7.92     10.03      4.83      1.65      0.10
     12   47.20     16.56     11.31     16.40*     7.04*     1.39      0.10
     13   10.49     13.21     33.21     18.66     20.77*     3.50      0.15
     14   11.47     13.37     32.24*    23.44     16.35      2.98      0.15
     15   29.25     17.43     33.62*    11.21      5.14      3.29      0.05
     16   39.23     15.48*    10.28     16.35     14.96      3.65      0.05
     17   12.75     31.83     23.86     17.17*     9.92      4.32      0.15
     18   12.90     18.15     30.69*    18.92     14.60      4.52      0.21
     19   26.58     20.36     30.49*    11.93      5.50      5.04      0.10
     20   28.95*    18.71     25.14     13.16      8.74      4.94      0.36
     21    7.71     19.23     34.45*    18.05     14.14      6.38      0.05
     22   11.05     23.60     21.95     19.59     17.58*     5.96      0.26
     23   16.40     21.49*    23.34     19.02     12.34      7.35      0.05
     24   14.09*    25.04     20.31     21.34     12.85      6.32      0.05
     25   15.84     32.24     12.34     12.90     18.87*     7.71      0.10


   (*)  Correct Response

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