A simple random sample is a subset of a statistical population where each member of the population is equally likely to be chosen.

A simple random sample is used to represent the entire data population. A stratified random sample divides the population into smaller groups based on shared characteristics.

Visualizing a simple random sample: Simple Random Sample of Lotto Balls This applet animates the random sampling of lotto balls. The population size can be set anywhere between 1 and 144. Users can ...

The results obtained by the authors so far on controlled sampling with equal probabilities and without replacement have been consolidated in this paper in an integrated fashion. Utilizing these ...

M. Ruiz Espejo, Housila P. Singh, Covariance of Sample Moments for Simple Random Sampling with Replacement of a Finite Population, Mathematical Proceedings of the Royal Irish Academy, Vol. 99A, No. 2 ...