bannerc

Term

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Definition

(1) The estimated amount or percentage by which an observed or calculated value may differ from the true value. (2) A broad and general term used to describe an imperfect state of knowledge or a variability resulting from a variety of factors including, but not limited to, lack of knowledge, applicability of information, physical variation, randomness or stochastic behavior, indeterminacy, judgment, and approximation (adapted from NPR 8715.3B, NASA General Safety Program Requirements). (Source: NPR 7150.2A - Appendix A)

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