[LON-CAPA-cvs] cvs: loncom /html/adm/help/tex Statistics_Overall_Key.tex

matthew lon-capa-cvs@mail.lon-capa.org
Wed, 28 Jan 2004 14:36:49 -0000

matthew		Wed Jan 28 09:36:49 2004 EDT

  Added files:                 
    /loncom/html/adm/help/tex	Statistics_Overall_Key.tex 
  Finally made a key for the overall problem statistics page.

Index: loncom/html/adm/help/tex/Statistics_Overall_Key.tex
+++ loncom/html/adm/help/tex/Statistics_Overall_Key.tex

The \textbf{Overall Problem Statistics} page displayes the following 
data about the problems currently in the course:


\item \textbf{#Stdnts}
Total number of students attempting the problem.

\item \textbf{Tries}
Total number of attempts to solve the problem.

\item \textbf{Max Tries}
Largest number of to solve the problem by a student.

\item \textbf{Mean Tries}
Average number of tries.

\item \textbf{S.D. tries}
Standard Deviation of the tries.

\item \textbf{Skew Tries}
Skewness of the students tries.
\[\frac{\sqrt{ \sum{(Xi - Mean)^3} / #Stdnts}}{\sigma^3}\]

\item \textbf{DoDiff}
Degree of Difficulty of the problem.  
\[ 1 - \frac{\#YES+\#yes}{Tries} \]

\item \textbf{#YES}
Number of students who solved the problem correctly.

\item \textbf{#yes}
Number of students who solved the problem by override.

\item \textbf{\%Wrng}
Percentage of students who tried to solve the problem but were unable to.