What does lexis ratio mean?
Definitions for lexis ratio
lex·is ra·tio
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Wikipedia
Lexis ratio
The Lexis ratio is used in statistics as a measure which seeks to evaluate differences between the statistical properties of random mechanisms where the outcome is two-valued — for example "success" or "failure", "win" or "lose". The idea is that the probability of success might vary between different sets of trials in different situations. This ratio is not much used currently having been largely replaced by the use of the chi-squared test in testing for the homogeneity of samples. This measure compares the between-set variance of the sample proportions (evaluated for each set) with what the variance should be if there were no difference between in the true proportions of success across the different sets. Thus the measure is used to evaluate how data compares to a fixed-probability-of-success Bernoulli distribution. The term "Lexis ratio" is sometimes referred to as L or Q, where L 2 = Q 2 = s 2 σ 0 2 . {\displaystyle L^{2}=Q^{2}={\frac {s^{2}}{\sigma _{0}^{2}}}.} Where s 2 {\displaystyle s^{2}} is the (weighted) sample variance derived from the observed proportions of success in sets in "Lexis trials" and σ 0 2 {\displaystyle \sigma _{0}^{2}} is the variance computed from the expected Bernoulli distribution on the basis of the overall average proportion of success. Trials where L falls significantly above or below 1 are known as supernormal and subnormal, respectively. This ratio ( Q ) is a measure that can be used to distinguish between three types of variation in sampling for attributes: Bernoullian, Lexian and Poissonian. The Lexis ratio is sometimes also referred to as L.
Numerology
Chaldean Numerology
The numerical value of lexis ratio in Chaldean Numerology is: 5
Pythagorean Numerology
The numerical value of lexis ratio in Pythagorean Numerology is: 6
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"lexis ratio." Definitions.net. STANDS4 LLC, 2024. Web. 25 Apr. 2024. <https://www.definitions.net/definition/lexis+ratio>.
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