This is a sampling procedure in which every member of the population has equal chance of being selected as a member of the sample. It is mostly adopted in homogeneous population (i.e. of the same kind). The methods of selection include casting of lots, tossing of coin or rolling a die. However, these methods are not perfectly objective and widely used method is the random number table. This table contains randomly allocated number arranged in rows and columns of a standard statistical table.
