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Standard deviation
A measure of how spread out data values are around the mean, defined as the square root of the variance. Represented with the Greek letter σ.
📖 Definitions of "Standard deviation"
noun
- 1
A measure of how spread out data values are around the mean, defined as the square root of the variance. Represented with the Greek letter σ.
💡 Words with a Similar Meaning to "Standard deviation"
Found via reverse dictionary — words that share a conceptual meaning.
| Word | Definition |
|---|---|
| standard errornoun | (statistics) A measure of how likely a mean of means is to be wrong. It is the standard deviation of the sample sizes in each to the sample means. |
| variancenoun | A difference between what is expected and what is observed; deviation. |
| velocity dispersionnoun | (astronomy) The statistical dispersion (about a mean) of the velocities of the stars in a galaxy (or galaxies in a cluster) |
| skewnessnoun | (statistics) A measure of the asymmetry of the probability distribution of a real-valued random variable; is the third standardized moment, defined as scriptstyle γ₁=(μ₃)/(σ³),! where μ₃ is the third moment about the mean and σ is the standard deviation. |
| stressnoun | (uncountable) Emotional pressure suffered by a human being or other animal. |
| svedbergnoun | A non-SI unit of sedimentation rate (symbol S or Sv), the rate at which particles of a given size and shape travel to the bottom of a tube under centrifugal force. |
| vannanoun | (finance) A second-order measure of derivative price sensitivity, expressed as the rate of change of vega with respect to changes in the spot price, or equivalently the rate of change of delta with respect to changes in the volatility of the underlying asset. |
| standing stocknoun | A measurement of population numbers per unit area or volume. |
| sp. gr.noun | Abbreviation of specific gravity. [(physics) The ratio of the mass of a substance to that of an equal volume of water at 4°C (or to some other reference substance)] |
| dispersionnoun | The state of being dispersed. |
| signal strengthnoun | The measured strength of a radio signal as received by a radio or any other device receiving radio signals, such as a mobile phone. |
| expectancynoun | Expectation or anticipation; the state of expecting something. |
| sverdrupnoun | (metrology, oceanography) A unit of measure of volume transport, used in oceanography, equal to 1 million cubic metres per second. |
| significant wave heightnoun | (oceanographics, nautical) A standardized measure of trough-to-crest wave height calculated for the needs of seafarers; exact mathematical definition has varied over time and currently it is defined as four times the standard deviation of the surface elevation. |
| expectationnoun | The act or state of expecting or looking forward to an event as about to happen. |
| true strainnoun | (engineering) A dimensionless measure of object deformation; the natural logarithm of the ratio of the object's deformed length to its initial length, along some axis. |
| vommanoun | (finance) A second-order measure of derivative price sensitivity, expressed as the rate of change of vega with respect to changes in the volatility of the underlying asset. |
| signal-to-noise rationoun | (engineering) A figure of merit that compares the strength of a signal carrying information to the level of noise interfering with it. |
| storativitynoun | (geology) The volume of water released from storage per unit decline in hydraulic head in a confined aquifer, per unit area of the aquifer. |
| root mean square velocitynoun | (physics) The root mean square of the velocities of all the molecules in a volume of gas; directly proportional to its temperature in the case of an ideal gas. |
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