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           2009 AMC8 Report for all schools in Puerto Rico             

           Number of schools returning results        4
           Average of school highest score        15.50
           Average school team score              40.50

           # of State Student Participants           94
           Overall State Average Score             9.13

                       Average Score by Grade level

                   Grade         # of Students  Average

                    6th              21           8.52
                    7th              37           9.35
                    8th              36           9.25



           Number of Female Students                 36
           Average Score of Female Students        9.47

                       Average Female Scores by Grade

                   Grade         # of Students  Average
                   6th                5           8.60
                   7th               17           9.88
                   8th               14           9.29



           Number of Male Participants               56
           Average Score of Male Participants      8.88

                       Average score for Males by Grade

                   Grade         # of Students  Average
                   6th               16           8.50
                   7th               19           8.84
                   8th               21           9.19




                     2009 American Mathematics Contest  8
                   Number of Students Achieving Indicated Score



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



           (@)  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
              20                                    1
              19
              18
              17
              16                                    1
              15                                    1            1
              14                                    3
              13                       1            1            1
              12                       1            2            7
              11                       2            3            1
              10                       3            2            7
               9                       3            3            5
               8                       5            7            5
               7                       5            7            4
               6                                    4            4
               5
               4                                    1
               3                                    1            1
               2
               1
               0(@)                    1
               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
              48          1
              43          1
              38          1
              33          1







                   Table of Item Difficulty for the 2009
                      American Mathematics Contest  8
                 Tabulation of responses by      94 Students
                             Percent of Responses


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

      1    0.00      0.00      1.06      0.00     97.87*     1.06      0.00
      2    5.32      1.06      0.00     91.49*     1.06      1.06      0.00
      3   15.96      6.38     73.40*     1.06      1.06      2.13      0.00
      4    8.51     69.15*     2.13      7.45      9.57      3.19      0.00
      5    7.45      9.57     21.28     48.94*     6.38      6.38      0.00
      6   65.96*     7.45      9.57      3.19      7.45      6.38      0.00
      7    4.26      8.51     24.47*    26.60     32.98      3.19      0.00
      8   25.53     17.02*    42.55      4.26      8.51      2.13      0.00
      9   13.83     30.85*    21.28     22.34      6.38      5.32      0.00
     10    8.51     26.60     11.70     41.49*     9.57      2.13      0.00
     11    6.38     12.77     27.66     23.40*    20.21      9.57      0.00
     12   18.09     18.09      2.13     47.87*    12.77*     1.06      0.00
     13    8.51     65.96*     8.51     12.77      2.13      2.13      0.00
     14    4.26      6.38*    77.66      8.51      1.06      2.13      0.00
     15   20.21     11.70     12.77     27.66*    17.02     10.64      0.00
     16   36.17     15.96     18.09     10.64*    10.64      7.45      1.06
     17   19.15     23.40*    11.70     13.83     15.96     15.96      0.00
     18   17.02      9.57     34.04*    22.34      9.57      7.45      0.00
     19    8.51     15.96     23.40     11.70*    25.53     14.89      0.00
     20   13.83     31.91     13.83     18.09*     9.57     12.77      0.00
     21   17.02     29.79     15.96     15.96*     4.26     17.02      0.00
     22   14.89     12.77     13.83     23.40*    18.09     17.02      0.00
     23   14.89     14.89*    12.77     14.89     19.15     23.40      0.00
     24   20.21      8.51     18.09     13.83     12.77*    26.60      0.00
     25   14.89     11.70     13.83     11.70     15.96*    31.91      0.00


   (*)  Correct Response

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