Uncertainty refers to situations involving imperfect or unknown information, and it applies to predictions of future events, physical measurements, or the unknown. It arises in various fields, including philosophy, physics, statistics, economics, finance, medicine, psychology, sociology, engineering, and others
. In the context of measurements, uncertainty means the range of possible values within which the true value of the measurement lies
. It is also associated with the feeling of not being sure about future outcomes or decisions
. The quality or state of being uncertain is characterized by doubt or the lack of absolute sureness
