Examlex
Which of the following is assumed for establishing the unbiasedness of Ordinary Least Square (OLS) estimates?
Perforation
A medical condition in which a hole or tear occurs in the wall of any part of the gastrointestinal tract or other bodily organs.
Endoscope
A flexible tube with a light and camera attached, used to examine the interior of a bodily organ or space.
Natural Opening
A passage by which substances or objects can enter or exit an organ or body part naturally.
Artificial Opening
A surgically created opening in the body for the discharge of bodily wastes or other purposes.
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