Search Results for ""

A database can be roughly defined as a structure consisting of 1. A collection of information (the data), 2. A collection of queries that can be submitted, and 3. A ...

The number of data points which fall within a given class in a frequency distribution.

A proposition which is consistent with known data, but has neither been verified nor shown to be false. It is synonymous with hypothesis.

The cumulative frequency in a frequency distribution divided by the total number of data points.

The ratio of the absolute frequency to the total number of data points in a frequency distribution.

A moving average may generate an irregular oscillation even if none exists in the original data.

A quantity (such as a statistical median, quartile deviation, etc.), which is calculated from observed data.

A method which can be used to solve some classes of integral equations and is especially useful in implementing certain types of data inversion. It has been applied to invert ...

An algorithm for partitioning (or clustering) N data points into K disjoint subsets S_j containing N_j data points so as to minimize the sum-of-squares criterion ...

Quantile-quantile plots (also called q-q plots) are used to determine if two data sets come from populations with a common distribution. In such a plot, points are formed ...