Sentences with phrase «standard deviation for»

Means and standard deviation for children's social and emotional competences and for parental emotion - related conversations are summarized in Table 3.
Standard scores were derived by subtracting the mean score from the observed score and dividing the amount by the standard deviation for that distribution of scores.
Table 1 reports the mean score and standard deviation for all outcomes pre - intervention and at 6 and 12 months follow up in control and treatment groups.
The range of scores with the mean and standard deviation for the PSC, CBCL Total, and CBCL Internalizing and Externalizing scales are presented in Table 2.
Almost all the SOD's 10.2 % error standard deviation for greenhouse gas AF relates to the AF magnitude that a given change in the greenhouse gas concentration produces, not to uncertainty as to the change in concentration.
Adding the relevant years» total uncertainty estimates for the HadCRUT4 21 - year smoothed decadal data (estimated 5 — 95 % ranges 0.17 °C and 0.126 °C), and very generously assuming the variance uncertainty scales inversely with the number of years averaged, gives an error standard deviation for the change in decadal temperature of 0.08 °C (all uncertainty errors are assumed to be normally distributed, and independent except where otherwise stated).
The mean and standard deviation would be the daily mean and standard deviation, whereas the actual figure needed to calculate is the mean and standard deviation for the maximum temperatures over a 14 day period, which would be much higher than the daily figure (read more).
In AOGCMs, the water vapour feedback constitutes by far the strongest feedback, with a multi-model mean and standard deviation for the MMD at PCMDI of 1.80 ± 0.18 W m — 2 °C — 1, followed by the (negative) lapse rate feedback -LRB--- 0.84 ± 0.26 W m — 2 °C — 1) and the surface albedo feedback (0.26 ± 0.08 W m — 2 °C — 1).
They take the temperature anomaly at each location and divide it by the standard deviation for that location to determine how many standard deviations away from normal the temperatures at that location were.
GCMs underestimate the observed variability (expressed by the standard deviation for temperature and the coefficient of variation for precipitation) in 73 % of cases for temperature and 90 % for precipitation (Fig. 6), and the observed Hurst coefficient in 75 % of cases for temperature and 83 % for precipitation (Fig. 7).
One could argue that real SST measurements aren't quite so well - behaved, but it is possible to show (see Figure 11 of the HadSST2 paper, Rayner et al. 2006 for details) that the standard deviation of grid box averages falls roughly as one over the square root of the number of contributing observations and that the standard deviation for gridbox averages based on a single observation is a lot less than 10 degrees.
Averaging more years reduces the standard deviation by the square root of the number of years, so by the time you average ten years the standard deviation for a decade is down to 0.03 degrees.
The distribution for the measurement of carbon - 14 age has (we're assuming) the same standard deviation for every calendar year, so it's always that case that we get some particular carbon - 14 measurement that was «unlikely», since any particular value for the measurement error is unlikely.
Unsurprisingly he comes up with a very large standard deviation for this value.
The 5 - day average standard deviation for global AAM is 1.2 x1025 kg m2 s - 1 and for the global tendency is 1.4 x1019 kg m2 s - 2.
The snow is higher than average, but only slightly higher than 1 standard deviation for the time of year.
Are you surprised that, having defined the starting point, and the error range, you can determine a standard deviation for a set of numbers generated on that basis?
That combination delivers a standard deviation for MRES from 1870 to 1950 of 203 microkelvins.
The standard deviation for the average location appears to be about 1.5 degC for seasonal temperature and 2.0 degC for monthly temperature.
Besides, while it's easy to find the standard deviation for a single fund or ETF, for reasons too technical and boring to go into here it's harder to calculate it for your entire portfolio.
You can find the standard deviation for any fund or ETF by clicking on the Ratings & Risk tab on its Morningstar page.
You can check this for yourself by using our monthly update of performance and standard deviation for both portfolios Couch Potato and AssetBuilder.
The annualized standard deviation for the fund in this analysis period was about 11.3 %, or close to 0.7 % higher than that of the reference ETF portfolio.
Market makers adjust for such skewness by, instead of using a single standard deviation for the underlying asset σ -LCB- \ displaystyle \ sigma -RCB- across all strikes, incorporating a variable one σ (K)-LCB- \ displaystyle \ sigma (K)-RCB- where volatility depends on strike price, thus incorporating the volatility skew into account.
I have demonstrated in my previous post that the standard deviation for the unhedged portfolio is almost 2 times larger (if we assume no long term correlation between stock returns and the CAD - UAD exchange rate, which is close enough for demonstration purposes).
Alternatively the mean and standard deviation for inflation can be specified explicitly.
I am looking for risk measures such as standard deviation for asset prices such as stock prices and index fund prices.
* To arrive at that number, I simply divided the monthly standard deviation for the 70/30 portfolio by the standard deviation for the 100 % stock portfolio.
Also, the standard deviation for both of the funds are on the lower side.Both these funds have high Alpha (Alpha is a measure of performance on a risk - adjusted basis.
The 10 - year standard deviation (a measure of price volatility) of the bond fund, according to the Morningstar website, is 5.06 percent while the standard deviation for the stock market fund is 15.75 percent.
Another way to look at the results of the AAII screens is to calculate compound annual returns divided by standard deviation for each series of results from 1998 to 2012.
Below are the results, including the Dow, with the Compound Annual Growth Rate (CAGR) for the timing system versus buy and hold and the standard deviation for both (SD).
Now, we can calculate the mean and standard deviation for the 1 - year returns of Berkshire Hathaway Class A Shares using the following two formulas:
These are the calculations of sales rank information displayed on the book's details page that show lowest, highest, averages, and standard deviation for that book's sales rank.
To determine this effect size, the authors multiplied the standard deviation for each NAEP exam by the change in its z - score, a statistical term used to describe distance from the mean.
The combined standard deviation for 2009 is 1.7 percent.
The standard deviation for this measure is a relatively large (1.34).
Last year, MDRC released results of a randomized evaluation of a volunteer - based tutoring program, Reading Partners, that increased reading achievement by 0.1 of a standard deviation for an out - of - pocket cost to the schools of only $ 320 per student.
«These effects,» Han writes, «are substantial, considering the standard deviation for dropout rates is about 11 percentage points.»
Because the standard deviation for payments is so large (skewed upward by affluent families) I present the median for payments, along with the mean.
After creating graphs and finding the mean, the median, the mode, and the standard deviation for the class, students explore a range of discussion questions about reducing their footprint, their responsibility to subsequent generations, the impact of their consumption, and more.
The aggregate NAEP results cited by the author hide achievement gains of 0.5 - 0.7 standard deviation for black students and 0.3 - 0.4 standard deviation for Hispanic students.
Most Americans would be extraordinarily satisfied with average gains of one full standard deviation for a school or district.
For both math and science, the study finds that a shift of 10 percentage points of time from problem solving to lecture - style presentations (for example, increasing the share of time spent lecturing from 60 to 70 percent) is associated with a rise in student test scores of 4 percent of a standard deviation for the students who had the exact same peers in both their math and science classes — or between one and two months» worth of learning in a typical school year.
We also computed the standard deviation for this difference.
Note: The mean and standard deviation for shortest acceptable, tallest acceptable, and ideal height and sexual dimorphism (SDR) in a dating partner are Radiocarbon dating (also referred to as carbon dating or carbon - 14 dating) is a method for determining the age of an object containing organic material by
My phone gave a satisfying bing as a new message from, the ubiquitous free online dating site, popped onto the screen Note: The mean and standard deviation for shortest acceptable, tallest acceptable, and ideal height and sexual dimorphism (SDR) in a dating partner are
In general, NSC - containing wells had much higher ATP levels than the hESC wells (Fig. 2A, standard deviation for variance in each plate provided in Supplementary Materials Table S4), consistent with recent reports that ATP levels are higher in differentiated EBs than in undifferentiated hESCs [15].
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 the 10 - year period as of April 4, the 60 - day, or quarterly, the standard deviation for the S&P 500 was ± 8 %.
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