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Chi or X is often used to abbreviate the name Christ, as in the holiday Christmas . When fused within a single typeface with the Greek letter rho , it is called the Chi Rho and used to represent the person of Jesus Christ.
By the central limit theorem, because the chi-squared distribution is the sum of independent random variables with finite mean and variance, it converges to a normal distribution for large . For many practical purposes, for k > 50 {\displaystyle k>50} the distribution is sufficiently close to a normal distribution , so the difference is ...
The chi distribution describes the positive square roots of a variable obeying a chi-squared distribution. If , …, are independent, normally distributed random variables with mean 0 and standard deviation 1, then the statistic = =
The kanji for one thousand (千, sen), appears similar to チ, and at one time they were related, but today チ is used as phonetic, while the kanji carries an entirely unrelated meaning. Many onomatopoeic words beginning with ち pertain to things that are small or quick. [1] The dakuten forms ぢ, ヂ, are uncommon.
The chi-squared test indicates a statistically significant association between the level of education completed and routine check-up attendance (chi2(3) = 14.6090, p = 0.002). The proportions suggest that as the level of education increases, so does the proportion of individuals attending routine check-ups.
The Chi Rho (☧, English pronunciation / ˈ k aɪ ˈ r oʊ /; also known as chrismon [1]) is one of the earliest forms of the Christogram, formed by superimposing the first two (capital) letters—chi and rho (ΧΡ)—of the Greek ΧΡΙΣΤΟΣ (rom: Christos) in such a way that the vertical stroke of the rho intersects the center of the chi.
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In statistics, the reduced chi-square statistic is used extensively in goodness of fit testing. It is also known as mean squared weighted deviation ( MSWD ) in isotopic dating [ 1 ] and variance of unit weight in the context of weighted least squares .