deletions | additions       diff --git a/background.tex b/background.tex  index ab3931f..a07d4e1 100644  --- a/background.tex  +++ b/background.tex 
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Both of these factors are computed in the control region as defined in section \ref{sect:eventSelection}. The final expression for the total count is as follows  $\mathrm{Total\ Pred} = \left(  S_{dy} \times \mathrm{N}_\mathrm{non} \right)  + \left(  S_{t\overline{t}} \times \mathrm{N}_\mathrm{2:1} \right)  $ describe control region cuts