Get it on Google Play
New! Download Unionpedia on your Android™ device!
Faster access than browser!

Standard score

Index Standard score

In statistics, the standard score is the signed number of standard deviations by which the value of an observation or data point differs from the mean value of what is being observed or measured. [1]

19 relations: Data, Dimensionless quantity, Expected value, Mathematical statistics, Mean, Normalization (statistics), Omega ratio, Prediction interval, Random variable, Raw score, Sample (statistics), Sample mean and covariance, Standard deviation, Standard normal deviate, Statistical population, Statistics, Student's t-test, T-statistic, Z-test.


Data is a set of values of qualitative or quantitative variables.

New!!: Standard score and Data · See more »

Dimensionless quantity

In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned.

New!!: Standard score and Dimensionless quantity · See more »

Expected value

In probability theory, the expected value of a random variable, intuitively, is the long-run average value of repetitions of the experiment it represents.

New!!: Standard score and Expected value · See more »

Mathematical statistics

Mathematical statistics is the application of mathematics to statistics, as opposed to techniques for collecting statistical data.

New!!: Standard score and Mathematical statistics · See more »


In mathematics, mean has several different definitions depending on the context.

New!!: Standard score and Mean · See more »

Normalization (statistics)

In statistics and applications of statistics, normalization can have a range of meanings.

New!!: Standard score and Normalization (statistics) · See more »

Omega ratio

The Omega ratio is a risk-return performance measure of an investment asset, portfolio, or strategy.

New!!: Standard score and Omega ratio · See more »

Prediction interval

In statistical inference, specifically predictive inference, a prediction interval is an estimate of an interval in which a future observation will fall, with a certain probability, given what has already been observed.

New!!: Standard score and Prediction interval · See more »

Random variable

In probability and statistics, a random variable, random quantity, aleatory variable, or stochastic variable is a variable whose possible values are outcomes of a random phenomenon.

New!!: Standard score and Random variable · See more »

Raw score

In statistics and data analysis, a raw score is an original datum that has not been transformed.

New!!: Standard score and Raw score · See more »

Sample (statistics)

In statistics and quantitative research methodology, a data sample is a set of data collected and/or selected from a statistical population by a defined procedure.

New!!: Standard score and Sample (statistics) · See more »

Sample mean and covariance

The sample mean or empirical mean and the sample covariance are statistics computed from a collection (the sample) of data on one or more random variables.

New!!: Standard score and Sample mean and covariance · See more »

Standard deviation

In statistics, the standard deviation (SD, also represented by the Greek letter sigma σ or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.

New!!: Standard score and Standard deviation · See more »

Standard normal deviate

A standard normal deviate (or standard normal variable) is a normally distributed random variable with expected value 0 and variance 1.

New!!: Standard score and Standard normal deviate · See more »

Statistical population

In statistics, a population is a set of similar items or events which is of interest for some question or experiment.

New!!: Standard score and Statistical population · See more »


Statistics is a branch of mathematics dealing with the collection, analysis, interpretation, presentation, and organization of data.

New!!: Standard score and Statistics · See more »

Student's t-test

The t-test is any statistical hypothesis test in which the test statistic follows a Student's ''t''-distribution under the null hypothesis.

New!!: Standard score and Student's t-test · See more »


In statistics, the t-statistic is the ratio of the departure of the estimated value of a parameter from its hypothesized value to its standard error.

New!!: Standard score and T-statistic · See more »


A Z-test is any statistical test for which the distribution of the test statistic under the null hypothesis can be approximated by a normal distribution.

New!!: Standard score and Z-test · See more »

Redirects here:

Sigma score, Standardised scores, Standardization (statistics), Standardize, Standardized (statistics), Standardized score, Standardized variable, Standardizing, T score, T-score, Z score, Z scores, Z statistic, Z-Score, Z-score, Z-scores, Zscore, Z‐score.


[1] https://en.wikipedia.org/wiki/Standard_score

Hey! We are on Facebook now! »