Items       Difficulty
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     35         0.760236    (means that roughly 76% people missed this one)
     52         0.741023    
     48         0.733385
      4         0.685039
     36         0.622913
     33         0.613779
     47         0.605669
     32         0.597637
     34         0.567322
     50         0.563070
     51         0.559842
      3         0.526771
     30         0.504724
     29         0.494488    (from here on down more people got the question right than wrong)
     10         0.488582
     ... 
     45         0.048819
     22         0.048032
     24         0.041733
     27         0.040945    (easiest item only 4.09% of the test takers got this wrong)