The quality control of meteorological data has lately received great attention for its important significance to national ecological security and military security. However, the observational quality ...

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

Challenge your mind with this brain teaser IQ test! Spot the hidden number '2' among a random sequence in just 5 seconds. Perfect for sharpening observation and thinking skills.

Scientists have built the first ever traceable and certifiable random number generator that uses quantum entanglement.

JPMorgan Chase & Co. has generated and certified so-called truly random numbers using a quantum computer, in a world-first that the bank hopes will have applications for security and trading.

We’ve featured other projects using radioactive decay for random number generation before, though they weren’t quite as philosophically intriguing as the DeDeterminator.

P. C. Mahalanobis, Subhendu Sekhar Bose, Prabhat Ranjan Ray, Sudhir Kumar Banerji, Tables of Random Samples from a Normal Population, Sankhyā: The Indian Journal of Statistics (1933-1960), Vol. 1, No.

A weighted random item sampler (selector), where the probability of selecting an item is proportional to its weight, and every item is sampled exactly once (without repetition or replacement). The ...