Sentences with phrase «standard deviations»

Looking at the global temperature in the form of standard deviations is very revealing.

Indeed looking at the 3 years (2009 - 2011) only one small region of the tropical ocean in 2011 exceeds minus three standard deviations -LRB--3 sigma), whereas warm extremes (+3 standard deviations) occur with regularity in each year.

Mochida said there is no consensus about where the cut - off is for head size, but it is typically two to three standard deviations smaller than the norm for the baby's gender and age.

The gray - shaded region shows two standard deviations from the average daily sea ice extent.

Sea surface temperatures were warmer this past summer also; I forget how many standard deviations the temperature was off the trend, but it was definitely anomalous.

Despite the lack of sensory information, we found that animals were remarkably precise and consistent in timed behaviors, with standard deviations on the order of 100 ms. To examine the potential neural basis of this precision, we recorded from single neurons in the lateral intraparietal area (LIP), which has been implicated in the planning and execution of eye movements.

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

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.

The new analysis claims that the data disagree with existing theory to better than three standard deviations, or 3 sigma.

«We now know something like an enstatite chondrite was the starting material for Mercury, which is surprising, because they are about 10 standard deviations away from all other chondrites,» Grove says.

Statistically, improbable by several standard deviations.

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.

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

This result has a significance of 4.4 standard deviations, allowing the ATLAS collaboration to report the first direct evidence of this phenomenon at high energy.

Previous experiments with beams and containers appeared to give sharply different neutron lifetimes, the most precise measurement using a bottle trap differs by almost four standard deviations from that measured in a beam.

An extremely high outlier was defined as having a personal average of greater than two standard deviations, or 2.41 cuts per case, above all physicians in the study.

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

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.

Using a repeated measures analysis of covariance for those infants with more than one postnatal weight measurement available, the difference between the two groups was similar, ∼ 1.2 standard deviations (P =.005).

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.

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.

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.

Children who score two standard deviations above the center (an IQ score of 130) do not always qualify for special accommodations.

Our daughter was more than 2 standard deviations off of normal in several places on the Q — basically a seriously dysregulated brain.

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.

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.

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.

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.

It's a couple of standard deviations away from the norm.

And without the projections (and the standard deviations they create) propping things up, everything has sagged back toward the middle.

What the two groups have found is the beginnings of a detection «bump»: ATLAS team quotes a tentative result at 125 - 126GeV with a statistical significance of 3.6 σ (3.6 standard deviations); the CMS team finds one at 124GeV at a lower confidence level of 2.6 σ.

They are far more accurate AND note in the calculations the variances (called standard deviations) and can trace much farther back with relative accuracy.

As you can see in the oscillator below, gold is currently down more than two standard deviations.

At 105.8, its December reading was up a phenomenal five standard deviations.

These upper and lower bands are set above and below the moving average by a certain number of standard deviations of price, thus incorporating volatility.

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

Over the entire sample period, the average daily / weekly / monthly returns of the world stock index are higher than those of gold, and gold returns have higher standard deviations than stock returns.

The dollar is up almost two standard deviations, crude oil down almost one standard deviation.

Calculate the average of the standard deviations of daily returns over the last 60 trading days for the individual risky assets (all except Cash).

The Overall composite index of all variables showed an increase of 1.69 standard deviations (p <.0001).

The composite index for Jerusalem comprising crime, auto accidents, and fires showed an increase of approximately one standard deviations during the 15 days when it was the group was largest compared to the 15 days when the group was smallest to (p =.003).

A composite index for Israel as a whole, composed of crime, national mood, and the stock market, showed an increase of 1.38 standard deviations over the same periods (p =.0001).

To tie all these topics together, below is a new bracket with 8 benchmark indexes that shows that two indexes that buy VIX call options (LOVOL and VXTH) had the lowest standard deviations over the past decade.

JPMorgan points out that US equities are 2 standard deviations rich to their average valuation and are in fact the most expensive in the developed world...

Right now crude is down 1.2 standard deviations — already signaling a buy, but it might have further to fall, based on past incidences.

We recently experienced another dislocation in the market where stocks and ETFs were showing prices that were, and I'm guessing here, a ridiculous amount of standard deviations away from what would be considered normal.

Higher standard deviations may indicate a more volatile asset class that has a greater potential for losses.

Over the weekend, my friend Jonathan Tepper sent me a note suggesting that it might be interesting to discuss the extreme position of the S&P 500 relative to its upper Bollinger bands (two standard deviations above a 20 - period moving average) at monthly, weekly, and daily resolutions.

Currently the ratio is 0.30, close to two standard deviations below the long - term average.

The following chart summarizes average (equally weighted) sector returns and standard deviations of average sector returns by calendar month over the available sample period.