Sentences with phrase «standard deviation means»

In general, a higher standard deviation means greater volatility.

If you don't know what standard deviation means, that's fine.

A higher standard deviation means greater volatility.

Higher standard deviation means more extreme ups and downs in the value of a portfolio over time.

In general, a higher standard deviation means greater volatility.

Not exact matches

The company's name comes from the statistical symbols for «mean» and «standard deviation,» and conference rooms are named after statistical distributions.

In the three - minute windows between 9:30 and 9:33 during the control period, we detect a mean of 2.50 mini flash per day, with a standard deviation of 1.65 mini flash crashes.

With an annual standard deviation of 20, an 8 % average return means that stocks will return between -8 % and +28 %...

What this means is that, even though the S&P was down 1.22 percent in the first quarter, the decline was well within its expected range of one standard deviation, which occurs roughly 68 percent of the time.

It's when they exceed two standard deviations that investors might want to consider a trade, as the asset could be ready to revert back to its mean.

And suppose newspapers only report on big news, that's (say) one standard deviation or more away from the mean.

They measure changes in analyst earnings forecast dispersion (standard deviation divided by mean) based on data from I / B / E / S as the difference between current dispersion and dispersion two months ago.

He tests this approach by matching actual yield curve data with standardized (normal) R and C distributions that both have zero mean and standard deviation one (such that standardized R and C may be negative).

Standard deviation is considered a measure of volatility, representing deviation of a set of data from a mean.

Gold is now up at least one standard deviation for the 60 - day period, meaning now might be a good time to take some profits and rebalance.

For more on standard deviation and mean reversion, I invite you to download my whitepaper, «Managing Expectations: Anticipate Before You Participate in the Market.»

The means, standard deviations, and correlations between and stocks and bonds are presented in Table 2.

One standard deviation in skills confidence meant an approximately 15 % greater chance of being fired for toxic behavior, while employees who were found to be more self - regarding (and less concerned about others» needs) had a 22 % greater likelihood.

Around here you would need to submit to testing several times daily to find the mean and standard deviation — hmmmmm hot hot hot

For a 100 g target weight, the mean weight is about 100.1 g and standard deviation is only about 0.2 g.

What variables do you use for the mean and standard deviation?

My bad, his best season was 1.3 % not 1.6 % (stupid bifocals), that's 1.68 standard deviations below the mean, about 5 % likely.

Based upon the dataset you have provided, the mean is 2.2 % with a standard deviation of 0.534 %.

People may vary on how they define «outlier» depending upon their specific industry — in my work I typically view outliers as things more than 3 standard deviations from the mean (standard in many industries because 99.7 % of data falls within + / - 3 standard deviations)-- but nobody in his right mind calls 1.1 standard deviations an outlier because that would exclude over 25 % of the data.

If your growth is within the extremes of normal limits 2 1/2 standard deviations above and below the mean, if anybody knows what that means, then we're happy.

The mean composite knowledge score was 69 % preintervention, and 80 % postintervention; the mean % difference was 11 % with a standard deviation of 8.95 (t = 8.7; df: 47; P <.001).

I figure that the uncertainty in a sample of 4 counts is ± 2, which means that the expected value of 1 is well within 2 standard deviations.

However, although there was no excess of infants in the fluoxetine group with postnatal weight measurements > 2 standard deviations below the mean, these data indicate that breastfeeding while taking fluoxetine is associated with reduced growth that may be of clinical importance in situations in which infant weight gain is already of concern.

Despite the fact that infants breastfed by mothers who took fluoxetine demonstrated less robust weight gain than the comparison group, it is reassuring that there was no significant excess of infants with weight measurements > 2 standard deviations below the mean.

With respect to the adequacy of weight gain in these infants, using > 2z score units (standard deviations) below a mean of 0 to define inadequate weight gain, 8 % and 6 % of infants in the fluoxetine and the no medication groups, respectively, fell into this classification at the time of the first postnatal measurement.

* Average level of DHA in worldwide breast milk is 0.32 % + / - 0.22 % (mean + / - standard deviation of total fatty acids) based on an analysis of 65 studies of 2,474 women.

Thus, the Gaussian - distributed quantitative variables were expressed on the basis of the mean and standard deviations, while the non-Gaussian-distributed variables were expressed in median and quartiles.

Summary statistics including the mean and standard deviation of the survey items were calculated.

The mean BMI of children was virtually identical across breastfeeding categories, but the standard deviation of BMI monotonically decreased with increasing breastfeeding duration.

† Average level of DHA in worldwide breast milk is 0.32 % ± 0.22 % (mean ± standard deviation of total fatty acids) based on an analysis of 65 studies of 2,474 women.

The distribution of voters in the class is Binomial with mean p N and standard deviation sqrt (N * p * (1 - p)-RRB-.

However, by 1999, the gap in mean scores by race had expanded to about 0.8 standard deviations.

Zonally averaged values of signal (red) and noise (black) are shown where signal is the mean difference in the variable between 1989 - 2039 and 1860 - 1910, and noise is the standard deviation of the variable for 1860 - 1910.

Sometimes it's appropriate to discard outliers but only «if it is, let's say, within 3 to 4 standard deviations of the mean.

Analyzing patients covered by Medicare, the study finds that increasing emergency - care spending by one standard deviation about the mean generates roughly a 10 percent (and 4 percentage point) reduction in mortality.

At the same time your score in standardised tests of learning and memory must fall at least one standard deviation below the mean score for 26 - year - olds.

In essence, SPRITE allows the researchers to do some reverse engineering: deriving statistically possible data sets from the means and standard deviations reported in a study.

Then, the researcher used a mathematical model to translate the quantile estimates into mean and standard deviation of yield.

«The mean provides estimates for how many bushels the firm can expect on average, while the standard deviation captures the expected variability in the growth process,» said Bansal, who worked with Genaro J. Gutierrez, associate professor of information, risk, and operations management at the University of Texas at Austin, and John R. Keiser, of Dow AgroSciences.

Insulin resistance increased by 17 % for every 10.6 µg / m3 (2 standard deviations [SDs] from the mean) increase in ambient nitrogen dioxide (NO2) and 19 % for every 6 µg / m3 (2 SDs) increase in particulate matter of up to 10 μm in diameter.

Gray shading indicates standard deviation of the mean.

The minimum detectable concentration is defined as two standard deviations above the mean binding of 48 randomly chosen naive B cell antibodies (Fig.

They had a mean of 1159cc, with a standard deviation of 118.93.

Plot shows mean ± standard deviation.

Now our statistical books tell us that one standard deviation on either side of the mean includes 68.26 % of the population, two standard deviations include 95.46 %, three include 99.73 %, four include 99.99366 %... Now, 700cc is very nearly 4 standard deviations away from the Bushmen's mean of 1159.