This article is written like a personal reflection, personal essay, or argumentative essay that states a Wikipedia editor's personal feelings or presents an original argument about a topic. Please help improve it by rewriting it in an encyclopedic style. (November 2014) (Learn how and when to remove this message) The examples and perspective in this article deal primarily with the United States an
Accuracy is the proximity of measurement results to the accepted value; precision is the degree to which repeated (or reproducible) measurements under unchanged conditions show the same results. Accuracy and precision are two measures of observational error. Accuracy is how close a given set of measurements (observations or readings) are to their true value. Precision is how close the measurements
Health economics is a branch of economics concerned with issues related to efficiency, effectiveness, value and behavior in the production and consumption of health and healthcare. Health economics is important in determining how to improve health outcomes and lifestyle patterns through interactions between individuals, healthcare providers and clinical settings.[2] In broad terms, health economis
In probability theory and statistics, the gamma distribution is a versatile two-parameter family of continuous probability distributions.[1] The exponential distribution, Erlang distribution, and chi-squared distribution are special cases of the gamma distribution.[2] There are two equivalent parameterizations in common use: With a shape parameter k and a scale parameter θ With a shape parameter a
In linear algebra, the Sherman–Morrison formula, named after Jack Sherman and Winifred J. Morrison, computes the inverse of a "rank-1 update" to a matrix whose inverse has previously been computed.[1][2][3] That is, given an invertible matrix and the outer product of vectors and the formula cheaply computes an updated matrix inverse The Sherman–Morrison formula is a special case of the Woodbury fo
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