1) Alcoh and menth endings 2) Barn denizens 3) Ethan and aeros endings 4) Operational license stage 5) Protectors of qbs 
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Ordinary Least Squares, the standard linear regression procedure. One estimates a parameter from data and applying the linear model y = Xb + e where y is the dependent variable or vector, X is a matrix of independent variables, b is a vector of parameters to be estimated, and e is a vector of errors with mean zero that make the equations equal. The...
abbreviation: Optical Landing System
acronym: operational license stageacronym: operational line scanneracronym: optical line scanner