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Simple English Wikipedia was launched on September 18, 2001. [1]In 2012, Andrew Lih, a Wikipedian and author, told NBC News' Helen A.S. Popkin that the Simple English Wikipedia does not "have a high standing in the Wikipedia community," and added that it never had a clear purpose: "Is it for people under the age 14, or just a simpler version of complex articles?", wrote Popkin.
As explained above, while s 2 is an unbiased estimator for the population variance, s is still a biased estimator for the population standard deviation, though markedly less biased than the uncorrected sample standard deviation. This estimator is commonly used and generally known simply as the "sample standard deviation".
In mathematics, a differential equation is an equation that relates one or more unknown functions and their derivatives. [1] In applications, the functions generally represent physical quantities, the derivatives represent their rates of change, and the differential equation defines a relationship between the two.
Assume that the available data (y i, x i) are measured observations of the "true" values (y i *, x i *), which lie on the regression line: = +, = +, where errors ε and η are independent and the ratio of their variances is assumed to be known:
Depersonalization is a dissociative phenomenon characterized by a subjective feeling of detachment from oneself, manifesting as a sense of disconnection from one's thoughts, emotions, sensations, or actions, and often accompanied by a feeling of observing oneself from an external perspective.
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If a majority of voters approve Prop. 4 in November, they would authorize $10 billion in state borrowing to spend on climate and environment projects. The money will be repaid with interest ...