Examlex
When models exhibit heteroscedasticity,least squares is the most efficient procedure for estimating the coefficients of the regression model.
Optical Microscope
A microscope that uses light, concentrated through a condenser and focused through the object being examined, to project an image.
Condenser
A device used to condense a gaseous substance into a liquid or solid state, typically by cooling it.
Project An Image
The act of conveying a particular perception or representation of oneself to others.
Focus Controls
Elements in software or optical devices designed to adjust the clarity and sharpness of an image or to direct attention to specific tasks.
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