Search results
Results From The WOW.Com Content Network
Statistical suffixes are often added to the 8-digit tariff code for a total of 10 digits. If the number of digits are more than 6, additional digits are called as the national subdivision. Chapter 77 is reserved for future use by the HS. Chapters 98 and 99 are reserved for domestic use for the Contracting Parties to the HS Convention.
In statistics, the 68–95–99.7 rule, also known as the empirical rule, and sometimes abbreviated 3sr, is a shorthand used to remember the percentage of values that lie within an interval estimate in a normal distribution: approximately 68%, 95%, and 99.7% of the values lie within one, two, and three standard deviations of the mean, respectively.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file
This following list features abbreviated names of mathematical functions, function-like operators and other mathematical terminology. This list is limited to abbreviations of two or more letters (excluding number sets).
Random variables are usually written in upper case Roman letters, such as or and so on. Random variables, in this context, usually refer to something in words, such as "the height of a subject" for a continuous variable, or "the number of cars in the school car park" for a discrete variable, or "the colour of the next bicycle" for a categorical variable.
In statistical analysis, the rule of three states that if a certain event did not occur in a sample with n subjects, the interval from 0 to 3/ n is a 95% confidence interval for the rate of occurrences in the population. When n is greater than 30, this is a good approximation of results from more sensitive tests.
In statistical theory, one long-established approach to higher-order statistics, for univariate and multivariate distributions is through the use of cumulants and joint cumulants. [1] In time series analysis, the extension of these is to higher order spectra, for example the bispectrum and trispectrum.
The isotopes 269 Hs and 270 Hs respectively have half-lives of about 12 seconds and 7.6 seconds. It is also possible that the isomer 277m Hs is more stable than these, with a reported half-life 130 ± 100 seconds, but only one event of decay of this isotope has been registered as of 2016.