How To Use Standard deviation In A Sentence
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That notion identifies heritability with the regression of the offspring phenotype on the parental (or biparental mean in the case of sexual reproduction), where both phenotypes are presented as z-scores (i.e., set to mean = 0 and standard deviation = 1).
Miss Winter Solstice
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The top selling non-fiction book Blink is coining mucho bling for Malcolm Gladwell, yet in 1997 Gladwell wrote a New Yorker article called "The Sports Taboo: Why blacks are like boys and whites are like girls," which made exactly the same argument as Larry Summers made about what is innately different in the capabilities of males and females -- that men have a larger standard deviation on many traits, so there are more men at the top and bottom of the bell curves.
Archive 2005-02-27
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Often, that level of probability is arbitrarily set to a value like 95%, or two standard deviations, two sigma, which is about 98% for a normal distribution.
Archive 2007-10-01
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The margin for continuous variables is defined as a one standard deviation increase from the weighted mean.
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There is a kurtosis measure, a fourth moment as standard deviation is a second moment, for this variation.
A Dark, Misleading Force
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Values are means of triplicate measures and error bars represent the standard deviations.
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Paralleling this, I observe significant reductions in implicit bias (0.20 to 0.57 standard deviations) among Hindu children.
Matthew Yglesias » Neighborhood Diversity
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The maximum likelihood estimators(MLE) of means and standard deviations and the asymptotic distribution of likelihood ratio statistic are given.
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One study that identified 25% of women had a bone mineral density more than 2 standard deviations below normals.
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The conventional formula for the Sharpe ratio is: (Rp/Rf)/(SDp), where Rp=expected portfolio return, Rf=risk free return (10-year Treasury), and SD=standard deviation of the portfolio.
The Volokh Conspiracy » The Nobel Prize in Economics
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Associated standard deviations include a variance correction factor to account for variability as a result of the imputation process.
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The average experimental residue pKs are slightly stabilized relative to what is found in small peptides with a modest standard deviation.
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Now you can see why in Chapter 7 we discussed the calculation of expected return and standard deviation.
Principles of Corporate Finance
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Calculate the standard deviation using the fields that match the search criteria.
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All maps show electron density contoured at 1 standard deviation[Sentencedict], with the current model displayed for comparison.
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Some of these people, the ones I work with, must have I.Q. scores that are a standard deviation off the mark or something. * not that I place much faith on I.Q. scores* but I mean I've been teaching teacher's how to teach science, for the better part of 2 years, and I see no progress, I'm such a crutch.
Madrigle Diary Entry
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Soybean production was estimated assuming that yields of irrigated soybeans follow a normal distribution with a mean of 45 bushels per acre and a standard deviation of 10.
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Standard deviation is a statistical concept that denotes the amount of variation or deviation that might be expected.
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With respect to consensus, the average standard deviation of 0.73 is evidence of dissensus rather than consensus.
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Parental size and peripregnancy variables by pattern of change in weight standard deviation scores between zero and two years.
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The means and standard deviations of triplicate samples are shown.
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We calculated means, standard deviations, medians, and interquartile ranges as appropriate.
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Test scores, presented as unadjusted means and standard deviations for the major groups tested, show the magnitudes of the mean numerical scores.
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The standard deviation between the predict data and the original data was 1.88. It can conclude that the Bezier function is available to fit the washability curves.
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The usual measure of this spread is the standard deviation or variance.
Principles of Corporate Finance
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The specific dictionaries show a standard deviation of 9.95%, whereas for the general dictionaries this figure is only 5.95%.
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The data were analyzed in several ways, incorporating frequencies, percentages, means, medians, and standard deviations.
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If the standard deviation applied to cx affects shot string length, what about the shot strings of mixed pellet loads like the Black Cloud, for instance?
A Shotgun Myth
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Multi-scan program recipe capability standard with statistical report generating software to calculate standard deviation and mean.
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Usually we demand five sigma, that is five standard deviations from the peak, to claim “discovery.”
Bump Hunting (Part 2)
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Standard deviation is the measurement of how scores are clustered or dispersed in relation to the mean.
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A bootstrap method is then applied to estimate the standard deviations of the regression coefficients.
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Means and standard deviations of the variables used in the subsequent analyses are presented in Table 1.
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The cusum chart is designed to detect small changes in a process, in the range of 0.5 to 2.0 standard deviations, more rapidly than a standard individual control chart.
Paul Linsay's Poisson Fit « Climate Audit
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What's more, the relationship between the replacing errors and the standard deviation of demand, fraction of demand returned as well as the order lead time were analyzed.
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There are four data sets per amprenavir concentration, which were fitted simultaneously, shown by symbols with standard deviations from triplicate runs, from top to bottom over 6 h.
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It is common to quantify changes in response to the intensity of selection in terms of units of standard deviation.
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Respiratory symptoms were analysed by multiple logistic regression and lung function standard deviation scores by multiple linear regression.
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Descriptive statistics such as means, standard deviations, medians, percentages and frequencies were used to summarize the data.
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How could they not be, since all of the GCMs give very different results by all measures average, standard deviation, trend over any given period, IQR, autocorrelation, etc. ad infinitum.
New WSJ Article « Climate Audit
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Descriptive statistics, including means, medians, range, standard deviation, and frequencies, were used to enumerate the TAT process.
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Mike Hansberry says: whit: i have to agree. 33+ standard deviations difference? noWAY. the sad thing is that people are so unfamiliar with basic math concepts that they can read something like that and not go “WTF?” it is as unbelievable as a statement like “in 2 days, mary gained 350 lbs of bodyfat”. people would go WTF? if they saw that, and rightly so
The Volokh Conspiracy » The “Racist” Charge
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Sample means, trimmed means, medians, standard deviations, minimums, maximums, skewness and kurtosis are reported.
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Data are described as frequencies, medians with ranges, and means with standard deviations.
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The relative standard deviation for the major PCBs for repeat analyses of plasma samples was approximately 20% for most congeners.
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The standard statistical measures of spread are variance and standard deviation.
Principles of Corporate Finance
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One is the average or "expected" return; the other is the variance or standard deviation.
Principles of Corporate Finance
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We calculated means (standard deviations) or medians (ranges or interquartile ranges) as appropriate.
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We introduced a formula that allows you to derive the up and down moves consistent with a given standard deviation of asset returns.
Principles of Corporate Finance
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Most chronographs give you some statistical data, such as standard deviation: even though standard deviation may not be the best guide, it allows a reasonable guess.
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We defined obesity as a body mass index equal to or greater than the 95th centile, equivalent to a standard deviation score of 1.64 or more.
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Note: Correlations and standard deviations are calculated using returns in each country's own currency; In other words, they assume that the investor is hedged against exchange risk.
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In finance, most of the measures we use come straight from statistics - standard deviation, expected value, variance.
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The mean and standard deviations of propeller twist, roll, and slide values at each step are listed in Tables 1 and 2.
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* A denizen is precisely determined by calculating the generalized autoregressive conditional heteroscedascticity of the standard deviation of "residents", passed through a Bayesian filter, and finally normalized through a time-delay, reentrant neural net optimized with genetic algorithm parameter narrowing.
Countdown to SL backlash
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Volatility is typically measured by the standard deviation of the return of an investment.
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In these graphs, vertical error bars represent 1 standard deviation, calculated from binomial statistics on the number of visits.
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One study that identified 25% of women had a bone mineral density more than 2 standard deviations below normals.
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Standard deviations were calculated from four independent experiments.
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Various measures of central tendency and dispersion were calculated, including the mean, median, mode, standard deviation, and skew.
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While these correlation were performed with raw, unfiltered data, for clarity the tree-ring record in Figure 7B has been smoothed with a 10-yr lowpass filter and is presented in sigma units standard deviations from the chronology mean.
Loso: Varves in Alaska « Climate Audit
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The range is then divided by the standard deviation to produce a normalized or rescaled range value (R / S).
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The real way to test GCMs against the past is to compare other metrics than temperature trends, to compare such things as the standard deviation, interquartile range, derivatives, skewness, kurtosis, outliers, and other statistical measures, for their hindcasts with the actual reality.
CMIP Control Runs « Climate Audit
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A statistician, on the other hand, might say that analysis of the 3,255 responses from New Hampshire residents found them to be more than one standard deviation below the national average on the "extraversion" category in the Five Factor Model, a commonly used descriptive model of personality.
Nashuatelegraph.com local, state, business and sports news
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Instead, the PBGC is moving from an "undiversified" portfolio to a much more diversified one that would mitigate risks, he added, noting that the agency was projecting that the new investment policy would have a lower standard deviation than the old.
CFO.com: Today in Finance
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Uncertainty of Sample Mean and Standard Deviation.
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In the appendix to the chapter he suggests the standard deviation as a measure of risk.
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The test is renormalized at intervals of 20 or 25 years to keep the parameters of the distribution curve the same: mean and median of 100 points and standard deviation of 15 points.
Dan Agin: How We Change: The Impact of the Group On Human Development, Behavior, and IQ
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An estimator and the associated standard error may be computed by the bootstrap procedure: data are resampled randomly with replacement, and the mean and standard deviation then calculated.
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The research tool was self-developed questionnaire. The data were analyzed with SAS PC software on percentage, average mean, and standard deviation for descriptive analysis.
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Hence, this study standardized all cluster variates to a mean of zero and standard deviation of one.
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The variance of a random variable is the square of its standard deviation.
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The mean difference is expressed in terms of standard deviation units.
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In layman's terms, standard deviation is a unit of statistical measure that also expresses the probability of a given outcome arising.
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The mean age of respondents was 35.32 and the standard deviation was 14.29.
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Each cross in Figure 1 shows the standard deviation and expected return for each risky asset.
Financial Markets, Institutions and Money
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Therefore, the results use percentile reporting rates instead of standard deviations.
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Error bars show one standard deviation to give some idea of the variability among the six films.
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If we accept “masturbation is natural” then we examine masturabation habits and we find a distribution iwth a mean and that becomes “normal” and people who are too many standard deviations away from that mean come to be seen as aberrant or ill.
Let’s Talk About Sex Baby! (And keep talking and talking and talking…) « Bound, Not Gagged
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Moreover, the central limit theorem of probability theory does not apply in this context because empirical evidence shows that a constant standard deviation is an inaccurate measure of investment risk, due to the fact that investment performance, is typically skewed and exhibits kurtosis.
Redefining Investor Risk
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David Schwartz: A.Z: f(x,y) is f(x)+f(y), where f() is a normal distribution with mean equal to the measured value and standard deviation equal to 1/2 the tolerance.
The Volokh Conspiracy » AsteroidGate
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It has a higher beta and a higher standard deviation of return.
Principles of Corporate Finance
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Based on the WGI, the researchers estimate that when governance is improved by one standard deviation, incomes rise about three-fold in the long run, and infant mortality declines by two-thirds.
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The crosses show the combination of standard deviation and expected return for each risky asset.
Financial Markets, Institutions and Money
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Calculate the variance and standard deviation of this rate of return.
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When small samples are used to estimate population standard deviations, the results are biased in the direction of underestimation.
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Note: Correlations and standard deviations are calculated using returns in each country's own currency; In other words, they assume that the investor is hedged against exchange risk.
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We produced summary statistics for each cost variable (means, medians, and standard deviations).
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Average clustering coefficients and standard deviations of the averages for node degree bins are shown.
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The standard deviation of the estimate of, B is calculated as follows: therefore, the standard deviation is:.
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A.Z: f(x,y) is f(x)+f(y), where f() is a normal distribution with mean equal to the measured value and standard deviation equal to 1/2 the tolerance.
The Volokh Conspiracy » AsteroidGate
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Descriptive statistics (means, standard deviations, medians and percentages) were used.
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Their ß-galactosidase activities were measured as described before and are shown as means of triplicate values with standard deviations.
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Centrality, extremism, and indiscrimination all manifest themselves in the assigned raw score standard deviations and rater fit statistics.
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Calculate the standard deviation based on the entire population.
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He is a high priest in arcane mysteries of indexation, regression and standard deviation.
Times, Sunday Times
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Where possible we tabulated results in terms of means and standard deviations for consultations and proportions for prescribing and referrals.
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We calculated means (standard deviations) or medians (ranges or interquartile ranges) as appropriate.
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We used means, standard deviations, and interquartile ranges to summarize daily pollution and meteorology data.
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The curve forms from a graph plotting return and risk indicated by volatility, which is represented by standard deviation.
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For example, Thailand (only a half standard deviation below the US) has recently started a what appears to be a well-designed, sensible national program to boost average IQ by fortification of staple foods with iodine and other essential micronutrients in order to prevent IQ-lowering medical syndromes like the medical condition known as cretinism, which is caused by lack of iodine (the US instititued fortification of all salt with iodine back before WWII to eliminate cretinism).
Does It Matter If IQ Matters?, Bryan Caplan | EconLog | Library of Economics and Liberty
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The standard deviation of a sampling distribution. It is the statistic used to make statements about the accuracy of estimates based on sample information.
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The upper three curves are the pore radii for the three systems, whereas the lower three are the corresponding standard deviations of the upper curves.
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Error bars in the graphs reflect the standard deviation of 10 repeated runs.
