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Q: What percentage is 1 standard deviation?
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Is standard deviation a percentage?

No. It's the number that will help you work out the percentage.


What percentage of the data falls outside 1 standard deviation of the mean?

One standard deviation for one side will be 34% of data. So within 1 std. dev. to both sides will be 68% (approximately) .the data falls outside 1 standard deviation of the mean will be 1.00 - 0.68 = 0.32 (32 %)


The percentage that is one standard deviation away from mean?

For normally distributed data. One standard deviation (1σ)Percentage within this confidence interval68.2689492% (68.3% )Percentage outside this confidence interval31.7310508% (31.7% )Ratio outside this confidence interval1 / 3.1514871 (1 / 3.15)


What is the standard deviation of a standard normal distribution?

The standard deviation in a standard normal distribution is 1.


What percentage of the data falls outside 2 standard deviation of the mean?

4.55% falls outside the mean at 2 standard deviation


Does standard deviation have to be between 0 and 1?

Standard deviation doesn't have to be between 0 and 1.


In the standard normal distribution the standard deviation is always what?

The standard deviation in a standard normal distribution is 1.


A standard normal distribution has a mean of and standard deviation of?

Mean 0, standard deviation 1.


What is the mean and standard deviation for the standard normal curve?

Mean = 0 Standard Deviation = 1


What is percentile deviation?

A standard deviation in statistics is the amount at which a large number of given values in a set might deviate from the average. A percentile deviation represents this deviation as a percentage of the range.


The mean number is 14 with a standard deviation of 2.5 How many standard deviations is 16.50 from the mean?

16.5 is 1 standard deviation from the mean. If you add the mean of 14 to the 1 standard deviation of 2.5, the result is 16.5.


Find the formula for percentage of covariance?

100 x (standard deviation/mean)