This part of ISO 3534 defines general statistical terms and terms used in probability may be used in the drafting of other International Standards. In addition, it defines symbols for a limited number of these terms. The terms are classified as: a) general statistical terms; b) terms used in probability. Annex A gives a list of symbols and abbreviations recommended to be used for this part of ISO 3534. The entries in this part of ISO 3534 are arranged in association with concept diagrams provided as Annexes B and C to this standard.