Strip adaptive cluster sampling is extended to situations where the primary units have unequal numbers of secondary units. Primary units are selected with replacement and with probabilities ...

Stratified adaptive cluster sampling refers to designs in which, following an initial stratified sample, additional units are added to the sample from the neighbourhood of any selected unit with an ...

New York – June, 2021 – Reign Maker, a drone and data services innovation company, today announced the launch of Nixie, the world’s first drone-enabled water sampling and data collection system, ...