CMSC 27200 Theory of Algorithms: Winter 2015

Statistics

Notation: uq = upper quartile (75%), lq = lower quartile (25%)

Cumulative homework scores (all HW: sets 1--9) Originally posted 3-11, updated 3-15 2:30am. Updates due to a large set of misplaced HW9XC solutions and to a small number of late submissions accepted for medical reasons. Previously posted figures in parentheses where changes have occurred. (20%)

  
    93 students

             w/o         w XC        XC points
     max     318         445        127

     best    301         356(346)    73(63)
     uq      264         292(290)    32(26)
     median  226(223)    234         13
     lq      182(180)    186(185)     4

Approximate grade equivalents for homework points (including XC but measured as a percentage of the non-XC problems so 318 points count as 100%) (posted 3-11)
  
   percentage of    total      approximate 
   non-XC points    points     grade equivalent

   100%              318
    90%              286        A/A- boundary
    67%              213        B/B- boundary
    50%              159        C+/C boundary
    40%              127        C/C- boundary
    33%              105        C-/D+ boundary
    30%               95        D+/D boundary
    25%               80        D/D- boundary
    20%               64        D-/F boundary

Cumulative Midterm Score (1 & 2) (posted 3-1) (35%)

  
    91 students

             w/o      w XC
     max     350      401

     best    322      328
     uq      180      184
     median  138      139
     lq      105      105

Approximate grade equivalents for midterm points (including XC but measured as a percentage of the non-XC problems so 350 points count as 100%) (posted 3-11)

  
   percentage of    total      approximate 
   non-XC points    points     grade equivalent

   100%              350
    60%              210        A/A- boundary
    45%              158        B/B- boundary
    35%              123        C+/C boundary
    30%              105        C/C- boundary
    25%               88        C-/D+ boundary
    21%               74        D+/D boundary
    18%               63        D/D- boundary
    15%               53        D-/F boundary

Second Midterm (Feb 26) (posted 3-1) (20%)

  
    91 students

             w/o      w XC
     max     200      225

     best    180      184
     uq       99       99
     median   79       80
     lq       57       57

Cumulative homework scores (HW sets 1--7) (posted 2-27)

  
    93 students

             w/o      w XC   XC points
     max     221      319    98

     best    214      253    59
     uq      185      203    19
     median  159      166     7
     lq      127      132     3

Cumulative homework scores (HW sets 1--5) (posted 2-16)

  
    95 students

             w/o      w XC   XC points
     max     149      216    67

     best    142      170    36
     uq      123      133    11
     median  106      111     4
     lq       79       84     0

Approximate grade equivalents for homework points (including XC but measured as a percentage of the non-XC problems so 149 points count as 100%) (posted 2-16)
  
   percentage of    current    approximate 
   non-XC points    points     grade equivalent

   100%              149
    90%              134        A/A- boundary
    67%              100        B/B- boundary
    50%               74        C+/C boundary
    40%               60        C/C- boundary
    33%               50        C-/D+ boundary
    30%               45        D+/D boundary
    25%               37        D/D- boundary
    20%               30        D-/F boundary
So for instance if a student has 92 ordinary and 8 XC points then the score is 100 points which puts the grade on the B/B- boundary.

First Midterm (Jan 29) (posted 2-2)

  
    95 students

             w/o      w XC
     max     150      176

     best    142      150
     uq       79       79
     median   61       61
     lq       47.5     48.5

Cumulative homework scores (HW sets 1--3) (posted 1-28)

  
    98 students

             w/o      w XC
     max     91       131

     best    86       102    
     uq      71.5     80
     median  58.5     63.5
     lq      42       42

Cumulative homework scores (HW sets 1 and 2) (posted 1-27)

  
    104 students

             w/o      w XC
     max     55       80

     best    53       61    
     uq      44       46
     median  35.5     35.5
     lq      25       25