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The second set of numbers are less variable; the coefficient of variation is halved.



The second set of numbers are less variable; the coefficient of variation is halved.



The second set of numbers are less variable; the coefficient of variation is halved.



The second set of numbers are less variable; the coefficient of variation is halved.
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11y ago
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11y ago

The second set of numbers are less variable; the coefficient of variation is halved.

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Q: What does it mean if the mean is doubled but the standard deviation is the same?
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What is the difference between standard error of mean and standard deviation of means?

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.


What is standard deviation of the mean?

If repeated samples are taken from a population, then they will not have the same mean each time. The mean itself will have some distribution. This will have the same mean as the population mean and the standard deviation of this statistic is the standard deviation of the mean.


Is the standard deviation the same as the mean of absolute distances from the mean?

no the standard deviation is not equal to mean of absolute distance from the mean


Does standard deviation and mean deviation measure dispersion the same?

No. The average of the deviations, or mean deviation, will always be zero. The standard deviation is the average squared deviation which is usually non-zero.


How do you calculate mean and Median smaller then Standard deviation?

In the same way that you calculate mean and median that are greater than the standard deviation!


Why don't all normal curves have the same standard deviation?

Because the standard deviation is one of the two parameters (the other being the mean) which define the Normal curve. The mean defines the location and the standard deviation defines its shape.


What would it mean if a standard deviation was calculated to equal 0?

A standard deviation of zero means that all the data points are the same value.


When do you use the relative standard deviation instead of standard deviation?

Use %RSD when comparing the deviation for popolations with different means. Use SD to compare data with the same mean.


Is the expected value the same as the standard deviation?

No. The expected value is the mean!


Mean of normal curve always standard deviation?

No, they are rarely the same.


What are the four numbers have the smallest possible standard deviation?

If all four numbers are the same, there is no standard deviation. The mean will be equal to all 4 numbers, resulting in a 0 standard deviation. Ex) 5,5,5,5


Is population standard deviation the same thing as absolute standard deviation?

No.