Bonds typically have much lower volatility (measured
by the standard deviation of their returns) than stocks, which make them suitable for the more risk - averse investors.
For each decile, we've subtracted the 1986 - 2016 average price / revenue ratio for that decile, dividing the
result by the standard deviation of valuations in that decile (again from 1986 - 2016).
As was seen in the June submissions, models tend to agree better in the Atlantic / European sector of the Arctic compared to the East Siberian / Alaskan sector this year, as indicated
by the standard deviation in SIP.
They scale the gain in black students»
scores by the standard deviation of test scores computed for a select sample of students, and observe that the gain in their scores due to attending private school is «roughly one - third of the test - score gap between blacks and whites nationwide.»
But the real impact is in the risk reduction we see in the form of much lower volatility as measured
by standard deviation at 9.48 percent.
Sharpe Ratio: A measure of risk - adjusted performance calculated by dividing the excess return of a portfolio above the risk - free
rate by its standard deviation.
Assuming that pupils who are not allergic to pollen are also not affected by the pollen count, the results show that one in ten pupils with hay fever dropped one grade when the pollen count
increased by a standard deviation.
The «noise level,» that is, the amplitude of internal variability, approximated
here by the standard deviation (σ) of the OHC time series after the linear trend is removed, amounts to 0.77 × 1022 J from 2004 to 2015 (Table 1).
For a Gaussian time series, the margin of error on a trend of length N t estimated by linear least - squares regression is a function of the magnitude of the interannual variability (
given by the standard deviation σ), the lag - one autocorrelation and the trend length (Thompson et al. 2015).
A within - group d was first computed for each intervention group by dividing the t5 — t1 mean
difference by the standard deviation at t1 and then subtracting the d in the No - SET group from that in the SET group.
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.
In recent years, the volatility, or significant fluctuations in share prices, which used to characterise property shares, has largely disappeared, In fact, measured
by standard deviation methods, listed property is fast becoming one of the least volatile asset classes.
If we care about how much the two distributions overlap each other, we should calculate what is known as an «age - standardized» measure of the black - white gap, defined as the difference in the black and white average scores in a given grade
divided by the standard deviation in scores in that grade.
The Sharpe ratio is calculated by subtracting the risk - free rate - such as that of the 3 - month U.S. Treasury Bill - from the rate of return for a portfolio and dividing the
result by the standard deviation of the portfolio returns.
Although statisticians like to measure
risk by standard deviation, I don't think this is a very relevant guide to the way human beings actually experience risk.
The world - wide portfolio more than doubles the 40 - year return of the S&P 500 at less risk when
measured by standard deviation and the worst five - year period.
By using risk - adjusted yield — computed as 12 - month trailing yield divided
by the standard deviation of yield — the higher weight is placed on securities with more stable yields.
It is calculated by taking a fund's excess return over that of the three - month Treasury bill divided
by its standard deviation.
«As measured
by standard deviation, the iShares Gold Trust, an ETF that owns physical gold, has been more volatile than the Standard & Poor's 500 index.»
The following table compares average monthly returns, standard deviations of monthly returns, monthly reward / risk (average divided
by standard deviation), compound annual growth rates (CAGR) and maximum drawdowns (MaxDD) for the six ETFs above over the available sample period of 16.5 years.
First up are the teams which spur the most disagreement between voters as measured
by standard deviation.
First up are the teams which spur the most and least disagreement between voters as measured
by standard deviation.