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Mulliken charges arise from the Mulliken population analysis [1] [2] and provide a means of estimating partial atomic charges from calculations carried out by the methods of computational chemistry, particularly those based on the linear combination of atomic orbitals molecular orbital method, and are routinely used as variables in linear regression (QSAR [3]) procedures. [4]
In population genetics, the Watterson estimator is a method for describing the genetic diversity in a population. It was developed by Margaret Wu and G. A. Watterson in the 1970s. [1] [2] It is estimated by counting the number of polymorphic sites. It is a measure of the "population mutation rate" (the product of the effective population size ...
The table shown on the right can be used in a two-sample t-test to estimate the sample sizes of an experimental group and a control group that are of equal size, that is, the total number of individuals in the trial is twice that of the number given, and the desired significance level is 0.05. [4]
In statistics, the method of moments is a method of estimation of population parameters.The same principle is used to derive higher moments like skewness and kurtosis. It starts by expressing the population moments (i.e., the expected values of powers of the random variable under consideration) as functions of the parameters of interest.
WASHINGTON (Reuters) -U.S. Secretary of State Marco Rubio will not attend an upcoming G20 meeting in South Africa, the top U.S. diplomat said on Wednesday, days after President Donald Trump ...
Arab states who were swift to reject President Donald Trump's plan for the U.S. to take control of Gaza and resettle its Palestinians are scrambling to agree on a diplomatic offensive to counter ...
Mark and recapture is a method commonly used in ecology to estimate an animal population's size where it is impractical to count every individual. [1] A portion of the population is captured, marked, and released.
The cruise industry was very different in 1970, catering to an estimated 500,000 passengers. Three decades later that had jumped to five million thanks, say industry experts, in large part to a ...