standard deviation vs variance

standard deviation variance


  • 1) A statistic used as a measure of the dispersion or variation in a distribution or set of data, equal to the square root of the arithmetic mean of the squares of the deviations from the arithmetic mean.
  • 2) the square root of the variance


  • 1) computing, programming covariance and contravariance generally
  • 2) The state of differing or being in conflict
  • 3) A difference between what is expected and what happens
  • 4) A discrepancy, especially between two legal documents
  • 5) The act of varying or the state of being variable
  • 6) statistics The second central moment in probability
  • 7) The state or quality of being variant or variable; variation.
  • 8) An exception to the application of a usual rule, granted by an authority on the basis of hardship or practicality.
  • 9) The state or fact of being in disagreement or in conflict.
  • 10) Chemistry The number of thermodynamic variables, such as temperature and pressure, required to specify a state of equilibrium of a system, given by the phase rule; the degrees of freedom of a system.
  • 11) Statistics The square of the standard deviation.
  • 12) A discrepancy between two statements or documents, especially between the charge in a criminal indictment and the evidence presented.
  • 13) Difference or inconsistency.
  • 14) (Law) A disagreement or difference between two parts of the same legal proceeding, which, to be effectual, ought to agree, -- as between the writ and the declaration, or between the allegation and the proof.
  • 15) The quality or state of being variant; change of condition; variation.
  • 16) Difference that produces dispute or controversy; disagreement; dissension; discord; dispute; quarrel.
  • 17) (Statistics) The expected value of the square of the deviation from the mean of a randomly distributed variable; the second moment about the mean. This is also the square of the standard deviation.
  • 18) in disagreement; in a state of dissension or controversy; at enmity.
  • 19) discord that splits a group
  • 20) the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value
  • 21) the quality of being subject to variation
  • 22) a difference between conflicting facts or claims or opinions
  • 23) an official dispensation to act contrary to a rule or regulation (typically a building regulation)
  • 24) In a state of controversy or dissension; in a state of opposition or enmity.
  • 25) Variableness; inconstancy.
  • 26) The state of being or the act of becoming variant; alteration; variation; change; difference.
  • 27) Difference that produces disagreement or controversy; dispute; dissension; discord.
  • 28) Synonyms and Disagreement, etc. See difference.
  • 29) Between the form of the writ or process by which the action was commenced and the form of the declaration or complaint.
  • 30) In law, a discrepancy: Between pleadings and proof, as where a complaint mentions a wrong date, or the facts prove to be different from what was alleged.
  • 31) In physical chemistry, that property of a chemical system which is expressed by the equation V = c + 2 — φ, where V is the variance, c the number of independent components, and φ the number of phases in which the system may exist. Systems are said to be invariant, univariant, bivariant, multivariant, etc., according to the value of V.


  • 1) The usual measure of this spread is the standard deviation or variance.
  • 2) The standard statistical measures of spread are variance and standard deviation.
  • 3) This idealistic concept is at variance with reality.
  • 4) Our first step was to take a player's performance and measure the variance.
  • 5) One is the average or "expected" return; the other is the variance or standard deviation.
  • 6) It involves no skill, a high variance of returns and a negative expected value: you can expect not to recoup the cost of the ticket.
  • 7) Perhaps the matter in variance is a secret, not fit to be divulged to any, much less to be brought upon the stage before the country; and therefore end it privately, that it may not be discovered.
  • 8) Looking at the bottom graph, it appears the variance is a bit less than 5%.
  • 9) Another factor could be the difference in variance in talents within the genders.
  • 10) The Planning Board can not do that, any variance from the rules would have to come through the ZBA, but would probably be hard to get.
  • 11) The King County Health Department recently notified restaurants that the sous vide process — cooking vacuum-sealed food in water baths at low, precisely-controlled temperatures — requires a variance from the health department, as well as an approvedHazard Analysis and Critical Control Points (HACCP) plan, a detailed food safety plan more commonly seen in large-scale or industrial operations.
  • 12) Everywhere homosexuality and gender variance is being discriminated against; in more that 80 countries in the world, same sex relationships are criminalised and in 7 of them, death penalty can be enforced.
  • 13) The hypothesis would assert that substantial local variance is deliberate.
  • 14) If an exception or variance is needed, then the rules need changing.
  • 15) And you don't have to assume any large difference in variance between the male and female population's abilities.
  • 16) ‘Often Bollywood heroes are larger than life and their leadership qualities are totally at variance with reality.’
  • 17) ‘In fact, the conclusion of our study is at variance with their assertion.’
  • 18) ‘But it turned out worse than that: the 200 submissions were later judged to be totally at variance with the findings of the RAF's own Board of Inquiry into the accident.’
  • 19) ‘‘Thus I'll be supporting him even though that's at variance with decisions I've taken in the past,’ he added.’
  • 20) ‘The findings are at variance with recent preliminary figures from the National Educational Welfare Board.’
  • 21) ‘As you point out, it's so obvious at variance with the truth.’
  • 22) ‘His views are quite at variance with those of Prime Minister Howard on important aspects of foreign policy and Australia's place in the world.’
  • 23) ‘And the conclusions expressed seem, well, slightly at variance with Grant's synopsis.’
  • 24) ‘Mr Atkinson said there was a well defined process for members who had other interests which might be at variance with their role on the board.’
  • 25) ‘He said such an approach was at variance with established legal principles with regard to fair procedure.’
  • 26) ‘The public debate was misinformed and very much at variance with the position set out by the CEO.’
  • 27) ‘Yet nothing could be more at variance with our educational heritage.’
  • 28) ‘This is completely at variance with what the political system should be all about.’
  • 29) ‘The story told through the video is completely at variance with the mood of the song.’
  • 30) ‘As is typical of Edmonds's output, these songs work because he is smart enough to give them stylistic variance from other tracks.’
  • 31) ‘Similarly, there is wide variance in study populations and control groups, follow-up periods, and statistical analysis.’
  • 32) ‘Mitchell's failure to name those who paid for a private opinion poll during the election campaign appeared at variance with his public pleas for openness and accountability.’
  • 33) ‘In short, they are legal attributes of the Crown which are significantly at variance with those enjoyed by private persons.’
  • 34) ‘When a health authority is made aware of clinical activity at variance with best practice in the private sector, it is still duty bound to investigate and act.’
  • 35) ‘The administration's use of military power was nonetheless limited: the rhetoric and the perception were at variance with the reality.’
  • 36) ‘The figures were at variance with the Irish Hospitality Industry Alliance, which said up to 65,000 jobs would be lost if the blanket ban was introduced.’
  • 37) ‘Clearly at variance with his boss, he can see no basis on which Britain should join the euro.’
  • 38) ‘Last but not least, try not to be at variance with anyone.’
  • 39) ‘In finance, most of the measures we use come straight from statistics - standard deviation, expected value, variance.’
  • 40) ‘The method allowed him to investigate the independence of the sample mean and sample variance in certain cases.’
  • 41) ‘A statistical test for significance of the regression coefficient requires its variance.’
  • 42) ‘Common statistical methods, including chi square, analysis of variance, and multiple regression were used to analyze the data.’
  • 43) ‘Random effects are typically assumed to follow normal distributions with zero mean and unknown variances, termed ‘variance components.’’
  • 44) ‘It happens when a newspaper needs something from government officials - a zoning variance, a broadcast license renewal.’
  • 45) ‘It needed variances because the building codes were set up for either residential or hotels, not both.’
  • 46) ‘In New York's Chrysler Building, a code variance was required from the fire department to locate the control panel in a room off the lobby rather than beside the elevators.’
  • 47) ‘Notwithstanding his opposition, the Committee of Adjustments approved the variance on April 19, 1995.’

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