statistical quantity Comparison Table

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statistical quantity comparison table

Subject has acronym has symbol has definition

kurtosis The peakedness or flatness in the graphical representation of a statistical distribution.

median Literally the middle value in a sequence of values arranged in increasing size order. A useful mathematical estimator of the true value from a set of values when one of these values is contaminated, i.e. known to be much larger than the average.

probable error p.e. The error which will not be exceeded by 50 percent of the cases. The probable error is equal to 0.6745 times the standard error.

root mean square rms The square root of the mean square value of a set of numbers (see also random walk).

standard deviation σ The root mean square deviation from the arithmetic mean.

standard error s.e. The standard deviation of a distribution of means or any other statistical measure computed from samples. It is equal to 1.4826 times the probable error.

statistical error The uncertainty resulting from a measurement of purely random events. Such an uncertainty is defined as bracketing a range of values within which the correct value has a 66% chance of lying. For example, a value of (100 ± 10) obtained from a given measurement means that the true value has a 66% chance of lying between 90 and 110, and a 34% chance of being either above or below this range.

Subject	has acronym	has symbol	has definition
kurtosis			The peakedness or flatness in the graphical representation of a statistical distribution.
median			Literally the middle value in a sequence of values arranged in increasing size order. A useful mathematical estimator of the true value from a set of values when one of these values is contaminated, i.e. known to be much larger than the average.
probable error	p.e.		The error which will not be exceeded by 50 percent of the cases. The probable error is equal to 0.6745 times the standard error.
root mean square	rms		The square root of the mean square value of a set of numbers (see also random walk).
standard deviation		σ	The root mean square deviation from the arithmetic mean.
standard error	s.e.		The standard deviation of a distribution of means or any other statistical measure computed from samples. It is equal to 1.4826 times the probable error.
statistical error			The uncertainty resulting from a measurement of purely random events. Such an uncertainty is defined as bracketing a range of values within which the correct value has a 66% chance of lying. For example, a value of (100 ± 10) obtained from a given measurement means that the true value has a 66% chance of lying between 90 and 110, and a 34% chance of being either above or below this range.

Next quantity: temperature Up: quantity, statistical concept Previous quantity: solid angle