Sentences with phrase «using standard deviation»

Volatility can either be measured by using the standard deviation or variance between returns from that same security or market index.

For the purposes of polling just remember that the standard deviation is the measure of the distance or range between possible answers and the margin of error (plus or minus X % points 19 times out of 20) is calculated using the standard deviation represented using the curve.

Volatility can be measured using standard deviation and beta.

Volatility can either be measured by using the standard deviation or variance between returns from that same security or market index.

The table measures risk statistically, using standard deviation.

Portfolio risk is measured using standard deviation, which is a statistical measure of how much a return varies over an extended period of time.

The effect sizes of results were all computed by using the standard deviation of the control group.

It looks like you're using a standard deviation of 1.6 %.

We measure risk using standard deviation, which measures how close together or far apart the annual returns of a portfolio are.

Portfolio risk is measured using standard deviation, which is a statistical measure of how much a return varies over an extended period of time.

Students thoroughly understand the purpose and how to use standard deviation being taught with this resource.

Though most investors use standard deviation to determine volatility, there's an easier and more accurate way of doing it: the historical method.

Confidence limits are determined by using these standard deviations and assuming a normal distribution.

This portfolio variance statistic is calculated using the standard deviations of each security in the portfolio as well as the correlations of each security pair in the portfolio.

This should be done properly (and could be) but assuming the slight difference in period for the RAOBCORE v1.4 data or the selection of model runs because of volcanic forcings aren't important, then using the standard deviations in their Table IIa you'd end up with something like this:

[Response: For a single data point you should use the standard deviation, but for a model parameter you should use the standard error.]

You use the standard deviation of the relevant season, not one from a different season.

Not exact matches

Standard deviation is a measure of return volatility computed using monthly returns for the last three years.

The theory is that, using relationships between risk and return such as alpha and beta, and defining risk as the standard deviation of return, an «efficient frontier» for investing can be identified and exploited for maximum gain at a given amount of risk.

Take a set of 5 - year annual returns, and calculate the annualized standard deviation of returns (using monthly deviations and annualizing them is informative).

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

It's a welcome change for an event that had little juice on a PGA Tour that could use a deviation from the standard 72 - hole stroke play tournament.

One of the more commonly used risk measures is standard deviation.

Calculation to determine the necessary number of resident participants used estimations of knowledge from previous studies of pediatric residents, which suggested a baseline knowledge about breastfeeding of 60 percentage points.8, 9,15 To detect an improvement in knowledge score of 20 percentage points with an estimated standard deviation of 20 points, a 2 - tailed α error of 0.05 and a power of 0.80, sample size was calculated at a minimum of 16 resident participants.

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.

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).

If you use the longer 1857 - 2016 numbers from the Wikipedia link, they're barely over one standard deviation.

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.

Similarly, if replacing the lowest - ranked school in the survey with a top - quintile school, student test scores would improve by 0.39 of a standard deviation using a conventional VAM, and 0.53 of a standard deviation when using the MIT team's own VAM method.

What researchers called «a 1 standard deviation increase» in cumulative depression during early adolescence was associated with a 50 percent higher likelihood of cannabis - use disorder.

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

After adjusting for confounding factors such as maternal depression, family income and parental alcohol use, the researchers found that for every 3 - point (one standard deviation) increase on the Mood and Feelings Questionnaire (MFQ; a commonly - used measure of depressive symptoms) on the part of fathers, there was an associated 0.2 - point increase in the adolescent's MFQ score.

First released in 1986, the tool is still widely used today to translate raw Xray data from a variety of detectors into standardized data that includes the H, K and L indices of reflection, the intensity of the reflection, and the standard deviation of the intensity.

Globally, extremely warm nights that used to come once in 20 years now occur every 10 years.12 And extremely hot summers, those more than three standard deviations above the historic average, are now observed in about 10 % of the global land area, compared to 0.1 - 0.2 % for the period 1951 - 1980.13

For the LTQ - Orbitrap Velos data, the distribution of mass deviation (from the theoretical masses) was first determined as having a standard deviation (σ) of 2.05 part per million (ppm), and a mass error of smaller than 3σ was used in combination with Xcorr and ΔCn to determine the filtering criteria that resulted in < 1 % false positive peptide identifications.

Western medicine tends to look for immunoglobulin markers and use tests that score 3 standard deviations from the norm to classify as allergens.

Association of Genetically - Elevated Waist - to - Hip Ratio Adjusted for Body Mass Index (One Standard Deviation Increase) With Type 2 Diabetes Using Three Instruments

Association of Genetically - Elevated Waist - to - Hip Ratio Adjusted for Body Mass Index (One Standard Deviation Increase) With Type 2 Diabetes Using Three Instruments With Additional Adjustment for Body Mass Index

Association of Genetically - Elevated Waist - to - Hip Ratio Adjusted for Body Mass Index (One Standard Deviation Increase) With Coronary Heart Disease Using Three Instruments With Additional Adjustment for Body Mass Index

Using the national standard deviation to scale all scores, the effect of attending a private school on black students is only one - fifth to one - quarter as large as the black - white gap.

Furthermore, these effect sizes are not comparable because the standard deviation used to scale the voucher results is from a much less diverse sample: low - income, inner - city students who participated in the experiment.

The standard deviation Howell et al. used to scale gains was around 19, while the standard deviation of national percentile scores is necessarily 28.9, because percentile ranks follow a uniform distribution.

Using WAC records, we again only find a significant benefit for minority students, an increase in cultural participation of 8 percent of a standard deviation.

In a randomized controlled trial conducted at the United States Military Academy (West Point), the authors find that unrestricted laptop use reduces students» exam scores by 0.18 standard deviations relative to students for whom laptop use was prohibited; tablets reduce scores by 0.17 standard deviations (see figure).

Our analysis indicates that unrestricted laptop use reduced students» exam scores by 0.18 standard deviations relative to students for whom laptops were prohibited (see Figure 2).

Meaning - Standard DeviationStandard deviation is used to summarize the spread of values around the mean

Norm Dist 1 - explores how the mean and standard deviation effect the normal distribution function Norm Dist 2 - explores the probability distribution for a symmetrical two tailed event Norm Dist 3 - explores the probability of a general two tailed event You will need to allow macros to run when using most of the sheets available here.

Using the upper range of their effect size estimates, $ 100 spent on classroom coaches would yield a gain of over one - half standard deviations in student achievement, and one - to - one tutoring would yield a one - quarter standard deviations improvement.

Using variation in course - taking that arises both from changes in course offerings at particular campuses in a particular term and from variation across students in the distance that they have to travel to take in - person courses, we find that taking a course online reduces student grades by 0.44 points on the traditional four - point grading scale, approximately a 0.33 standard deviation decline relative to taking a course in - person (See Figure 1).

Using this relationship, increasing per - pupil spending by 10 percent is associated with about 0.12 standard deviations higher test scores (this relationship is statistically significant at the 1 percent level).