Examlex
If the interval between use and testing is long and the elimination half-life is long,urinanalysis can sometimes produce a positive result where oral fluid testing would not.
Least Squares
Least squares is a mathematical method used to find the best-fitting line or curve to a set of points by minimizing the sum of the squares of the differences between the observed and estimated values.
Squared Vertical Distances
The square of the vertical distance from each data point to a line (often in the context of regression analysis), used to measure deviation or error.
Regression Analysis
A statistical method for examining the relationship between a dependent variable and one or more independent variables.
Average Attendance
The mean number of individuals present at a series of events or over a period of time.
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