statistical sampling simple random sampling Alejandra Gonzalez-Beltran Philippe Rocca-Serra Simple random sampling is a statistical sampling process which creates a sample of a size n entirely by chance. In such process, each unit has the same probability of being selected. Depending on the size of the population being sampled, the sampling process may be done with or without replacement https://en.wikipedia.org/wiki/Simple_random_sample random sampling srswor(n,N) from https://www.rdocumentation.org/packages/sampling/versions/2.8/topics/srswor [simple random sampling without replacement] Sampling R package srswr(n,N) from: https://www.rdocumentation.org/packages/sampling/versions/2.8/topics/srswr [simple random sampling with replacement] Sampling R package systematic sampling ready for release