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"Variance" and "Standard deviation" are numbers that describe a set of data

that typically contains several numbers. Applied to a single number, neither

of them has any meaning.

-- The variance, standard deviation, and mean squared error of 7 are all zero.

-- The mean, median, mode, average, max, min, RMS, and absolute value of 7 are all 7 .

None of these facts tells you a thing about ' 7 ' that you didn't already know

as soon as you found out that it was ' 7 '.

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โˆ™ 2012-08-30 21:56:35
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Q: What is the variance and standard devation of 7?
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Variance = 17.9047619 Standard Deviation = 4.23140188


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Can standard deviation be larger then its variance?

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How do you calculate variance given standard deviation?

Square the standard deviation and you will have the variance.


What is the relationship between the variance and the standard deviation?

is variance the square of the standard deviation


How do you calculate standard deviation if I know variance?

Standard deviation = square root of variance.


What is the relationship between standard deviation and variance?

Standard deviation is the square root of the variance.


Can the Variance ever be smaller than standard deviation?

Yes. If the variance is less than 1, the standard deviation will be greater that the variance. For example, if the variance is 0.5, the standard deviation is sqrt(0.5) or 0.707.


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Is the variance of a group of scores the same as the squared standard deviation?

The standard deviation is defined as the square root of the variance, so the variance is the same as the squared standard deviation.


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