the most common computer memory which can be used by programs to perform necessary tasks while the computer is on; an integrated circuit memory chip allows information to be stored or accessed in any order and all storage locations are equally accessible
(statistics) the selection of a suitable sample for study
items selected at random from a population and used to test hypotheses about the population
measurement at regular intervals of the amplitude of a varying waveform (in order to convert it to digital form)
lacking any definite plan or order or purpose; governed by or depending on chance
