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In statistics, dispersion (also called variability, scatter, or spread) is the extent to which a distribution is stretched or squeezed. [1] Common examples of measures of statistical dispersion are the variance, standard deviation, and interquartile range. For instance, when the variance of data in a set is large, the data is widely scattered.
For sufficiently large values of λ, (say λ >1000), the normal distribution with mean λ and variance λ (standard deviation ) is an excellent approximation to the Poisson distribution. If λ is greater than about 10, then the normal distribution is a good approximation if an appropriate continuity correction is performed, i.e., if P( X ≤ x ...
The distributions of a wide variety of physical, biological, and human-made phenomena approximately follow a power law over a wide range of magnitudes: these include the sizes of craters on the moon and of solar flares, [2] cloud sizes, [3] the foraging pattern of various species, [4] the sizes of activity patterns of neuronal populations, [5] the frequencies of words in most languages ...
The distribution of Haplogroup C-M130 is generally limited to populations of Siberia, parts of East Asia, Oceania, and the Americas. Due to the tremendous age of Haplogroup C, numerous secondary mutations have had time to accumulate, and many regionally important subbranches of Haplogroup C-M130 have been identified.
Ethnic distribution of ABO (without Rh) blood types [75] (This table has more entries than the table above but does not distinguish between Rh types.) People group O (%) A (%) B (%) AB (%) Australian Aboriginals: 61: 39 0 0 Abyssinians: 43 27 25 5 Ainu 17 32 32 18 Albanians: 38 43 13 6 Great Andamanese: 9 60: 20 12 Arabs: 34 31 29 6 Armenians ...
29 is the fifth primorial prime, like its twin prime 31.. 29 is the smallest positive whole number that cannot be made from the numbers {,,,}, using each digit exactly once and using only addition, subtraction, multiplication, and division. [1]
Since 10 meters can frequently open up to propagate globally, most 10-meter repeaters use a CTCSS sub-audible access tone. 16 kHz-wide signals with 5 kHz deviation is normal in this band. 8 kHz-wide signals with 2.5 kHz deviation can also be found. 2.5kHz deviation is mandated by FCC rules below 29.0 MHz.
Modern analyzers use ion-selective electrodes which give a normal anion gap as <11 mEq/L. Therefore, according to the new classification system, a high anion gap is anything above 11 mEq/L. A normal anion gap is often defined as being within the prediction interval of 3–11 mEq/L, [8] with an average estimated at 6 mEq/L. [9]