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2. Interval (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Interval_(mathematics)

   The union of two intervals is an interval if and only if they have a non-empty intersection or an open end-point of one interval is a closed end-point of the other, for example (,) [,] = (,]. If R {\displaystyle \mathbb {R} } is viewed as a metric space , its open balls are the open bounded intervals ( c + r , c − r ) , and its closed balls ...

3. Glossary of probability and statistics - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_probability...

   Also confidence coefficient. A number indicating the probability that the confidence interval (range) captures the true population mean. For example, a confidence interval with a 95% confidence level has a 95% chance of capturing the population mean. Technically, this means that, if the experiment were repeated many times, 95% of the CIs computed at this level would contain the true population ...

4. Function of several real variables - Wikipedia

   en.wikipedia.org/wiki/Function_of_several_real...

   The image of a function f(x 1, x 2, …, x n) is the set of all values of f when the n-tuple (x 1, x 2, …, x n) runs in the whole domain of f.For a continuous (see below for a definition) real-valued function which has a connected domain, the image is either an interval or a single value.

5. Unit interval - Wikipedia

   en.wikipedia.org/wiki/Unit_interval

   In addition to its role in real analysis, the unit interval is used to study homotopy theory in the field of topology. In the literature, the term "unit interval" is sometimes applied to the other shapes that an interval from 0 to 1 could take: (0,1], [0,1), and (0,1). However, the notation I is most commonly reserved for the closed interval [0,1].

6. List of probability distributions - Wikipedia

   en.wikipedia.org/wiki/List_of_probability...

   The Poisson distribution, which describes a very large number of individually unlikely events that happen in a certain time interval. Related to this distribution are a number of other distributions: the displaced Poisson , the hyper-Poisson, the general Poisson binomial and the Poisson type distributions.

7. Bracket - Wikipedia

   en.wikipedia.org/wiki/Bracket

   Square brackets may be used exclusively or in combination with parentheses to represent intervals as interval notation. [44] For example, [0,5] represents the set of real numbers from 0 to 5 inclusive.