Please describe what are time-dependent expectation values, uncertainties and what are time-independent expectation values, uncertainties.

Please describe what are time-dependent expectation values, uncertainties and what are time-independent expectation values, uncertainties. For each term please include necessary formula. 

Time-dependent expectation values, uncertainty relate to the probable values of an event that relyon time for their occurrence. It is not a guarantee that these probable values of an event will...