sample+sum

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• Sum of squares — is a concept that permeates much of inferential statistics and descriptive statistics. More properly, it is the sum of the squared deviations . Mathematically, it is an unscaled, or unadjusted measure of dispersion (also called variability). When …   Wikipedia

• Sample size determination — is the act of choosing the number of observations to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample …   Wikipedia

• Sample mean and sample covariance — are statistics computed from a collection of data, thought of as being random.ample mean and covarianceGiven a random sample extstyle mathbf{x} {1},ldots,mathbf{x} {N} from an extstyle n dimensional random variable extstyle mathbf{X} (i.e.,… …   Wikipedia

• Sample size — The sample size of a statistical sample is the number of observations that constitute it. It is typically denoted n , a positive integer (natural number).Typically, all else being equal, a larger sample size leads to increased precision in… …   Wikipedia

• sample standard deviation — an estimate of the population standard deviation, usually determined (from a sample of size n) by dividing the sum of the squared deviations from the sample mean by n−1 and taking the square root; n−1 is used (rather than n) in order… …   Medical dictionary

• Time 4 Sum Aksion — Infobox Single Name = Time 4 Sum Aksion Artist = Redman from Album = Whut? Thee Album Released = January 12, 1993 Format = 12 single Recorded = 1992 Genre = East Coast Hip Hop Length = 3:24 Label = Def Jam Writer = Reggie Noble Lowell Fulson… …   Wikipedia

• rank sum test — a nonparametric statistical test for ordinal data, testing the null hypothesis that two samples are drawn from the same population versus the alternative hypothesis that the two samples are drawn from two populations having probability… …   Medical dictionary

• COMPASS/Sample Code — This COMPASS sample code displays the calendar of the year given as a parameter on the terminal. If no parameter is given, then the calendar of the current year is displayed. IDENT CALEND,FWA ABS SST ENTRY CALEND,RFL= SYSCOM B1 TITLE DISPLAY… …   Wikipedia

• Mean of the sample — The arithmetic average; that is, the sum of the observations divided by the number of observations. The New York Times Financial Glossary …   Financial and business terms

• mean of the sample — The arithmetic average ; that is, the sum of the observations divided by the number of observations. Bloomberg Financial Dictionary …   Financial and business terms

• Denavit–Hartenberg parameters — A commonly used convention for selecting frames of reference in robotics applications is the Denavit and Hartenberg (D–H) convention which was introduced by Jaques Denavit and Richard S. Hartenberg. In this convention, each homogeneous… …   Wikipedia