ISO 3534–2 defines applied statistics terms, and expresses them in a conceptual framework inaccordance with normative terminology practice.Term entries are arranged thematically within a conceptual framework. An alphabetical index isprovided. Standardized symbols and abbreviations are defined.ISO 3534-1 and ISO 3534 -2 are intended to be compatible. They share the common goal of restricting their respective mathematical levels to the minimum levels necessary to attain correct and concise definitions. Part 1 on terms used in probability and statistics is foundational so, by necessity, ispresented at a relatively more sophisticated mathematical level. Users o