Formally, the standard deviation is the square root of the variance. The variance is the mean of the squares of the difference between each observation and their mean value.
An easier to remember form for variance is: the mean of the squares minus the square of the mean.
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∙ 12y agoThe standard deviation of the population. the standard deviation of the population.
The standard deviation is 0.
The standard deviation in a standard normal distribution is 1.
You need more than one number to calculate a standard deviation, so 9 does not have a standard deviation.
The symbol for standard deviation is sigma , σ.
The standard deviation is the standard deviation! Its calculation requires no assumption.
The standard deviation of the population. the standard deviation of the population.
The standard deviation is 0.
Information is not sufficient to find mean deviation and standard deviation.
Standard deviation is the square root of the variance.
Standard error of the mean (SEM) and standard deviation of the mean is the same thing. However, standard deviation is not the same as the SEM. To obtain SEM from the standard deviation, divide the standard deviation by the square root of the sample size.
The standard deviation in a standard normal distribution is 1.
The standard deviation is a measure of the spread of data.
You need more than one number to calculate a standard deviation, so 9 does not have a standard deviation.
difference standard deviation of portfolio
Yes
Standard deviation of a single event is 0.