Annotation of loncom/html/adm/help/tex/Statistics_Overall_Key.tex, revision 1.1
1.1 ! matthew 1: \label{Statistics_Key}
! 2:
! 3: The \textbf{Overall Problem Statistics} page displayes the following
! 4: data about the problems currently in the course:
! 5:
! 6: \begin{itemize}
! 7:
! 8: \item \textbf{#Stdnts}
! 9: Total number of students attempting the problem.
! 10:
! 11: \item \textbf{Tries}
! 12: Total number of attempts to solve the problem.
! 13:
! 14: \item \textbf{Max Tries}
! 15: Largest number of to solve the problem by a student.
! 16:
! 17: \item \textbf{Mean Tries}
! 18: Average number of tries.
! 19:
! 20: \item \textbf{S.D. tries}
! 21: Standard Deviation of the tries.
! 22:
! 23: \item \textbf{Skew Tries}
! 24: Skewness of the students tries.
! 25: \[\frac{\sqrt{ \sum{(Xi - Mean)^3} / #Stdnts}}{\sigma^3}\]
! 26:
! 27: \item \textbf{DoDiff}
! 28: Degree of Difficulty of the problem.
! 29: \[ 1 - \frac{\#YES+\#yes}{Tries} \]
! 30:
! 31: \item \textbf{#YES}
! 32: Number of students who solved the problem correctly.
! 33:
! 34: \item \textbf{#yes}
! 35: Number of students who solved the problem by override.
! 36:
! 37: \item \textbf{\%Wrng}
! 38: Percentage of students who tried to solve the problem but were unable to.
! 39:
! 40:
! 41: \end{itemize}
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