least squares trend
101Quality control — This article is about the project management process. For other uses, see Quality control (disambiguation). Maintenance check of electronic equipment on a U.S. Navy aircraft …
102William Whewell — Infobox Scientist name = William Whewell box width = 300px image width = caption = William Whewell (1794 1866) birth date = birth date|1794|05|24 birth place = Lancaster, Lancashire, England death date = death date and age|1866|03|06|1794|05|24… …
103Null hypothesis — For the periodical, see Null Hypothesis: The Journal of Unlikely Science. The practice of science involves formulating and testing hypotheses, assertions that are capable of being proven false using a test of observed data. The null hypothesis… …
104Absolute deviation — In statistics, the absolute deviation of an element of a data set is the absolute difference between that element and a given point. Typically the point from which the deviation is measured is a measure of central tendency, most often the median… …
105Failure rate — is the frequency with which an engineered system or component fails, expressed for example in failures per hour. It is often denoted by the Greek letter λ (lambda) and is important in reliability engineering. The failure rate of a system usually… …
106Mode (statistics) — In statistics, the mode is the value that occurs most frequently in a data set or a probability distribution.[1] In some fields, notably education, sample data are often called scores, and the sample mode is known as the modal score.[2] Like the… …
107History of scientific method — The history of scientific method is inseparable from the history of science itself. The development and elaboration of rules for scientific reasoning and investigation has not been straightforward; scientific method has been the subject of… …
108Data — For data in a computer science context, see Data (computing). For other senses of the word, see Data (disambiguation). See also datum, a disambiguation page. The term data refers to qualitative or quantitative attributes of a variable or set of… …
109Clinical study design — is the formulation of trials and experiments in medical and epidemiological research, sometimes known as clinical trials. Many of the considerations here are shared under the more general topic of design of experiments but there can be others, in …
110Cochran's C test — In statistics, Cochran s C test [1], named after William G. Cochran, is a one sided upper limit variance outlier test. The C test is used to decide if a single estimate of a variance (or a standard deviation) is significantly larger than a group… …
