Since the standard deviation indicates the degree of dispersion of the data, the research group stated,“The difference in the weight of the three fish was the greater the consumption of food.
In conclusion, the standard deviation is not just a measure of spread, whereby a higher value displays more dispersion within a group; it's also an important parameter to measure probabilities, something very helpful for sports bettors.
The STDEV() function returns the estimate standard deviation based on a sample. The standard deviation is a measure of how widely values are dispersed from the average value.
フィーチャーx1の平均は5のあたりで、標準偏差はこのデータセットのx1の値だけを。
Looks like on average, the features x1 has a mean of about 5 and the standard deviation, if you only look at just the x1 values of this data set has the standard deviation of maybe 2.
今問題としているこの日の変化率の平均と標準偏差は分かっています平均は-0.00074%です。
If there is a big difference then this is a larger value and we know for the day in question what the mean and the standard deviation is for this percentage change.
We're calculating this area or for those of you who know calculus, we're calculating the integral from minus 1 to 1 of this function where the standard deviation is right here, is 10 and the mean is minus 5.
A preferred embodiment of the invention utilizes narrow size in the range alumina powder having a mean particle size in the range of approximately 0.3 to 1.0 micrometers with a standard deviation approximately 50% of mean.
The weight optimization procedure(having two constraints: the maximum standard deviation of the portfolio(6.40%) and the final sum of the weights, which should be 100%) leads us to the following solution, which maximizes the return of the portfolio.
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