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When you have a data set of numerical data the average is called the mean. Standard deviation measures how far - on average - the data is spread around the mean. As an example, if we had 100 students whose mean exam score was 

# data[].attributes.subject
When you have a data set of numerical data the average is called the mean. Standard deviation measures how far - on average - the data is spread around the mean. As an example, if we had 100 students whose mean exam score was 

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and the standard deviation was only 5 then it means everyone scored pretty closed - on average within 5 points of that.

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Standard Deviation is the measure of how far away you are
from the mean of the numbers in the data set. 

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Standard Deviation is the measure of how far away you are
from the mean of the numbers in the data set. 

# data[].attributes.headline
Standard deviation is the average distance data is from the
mean 

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Standard deviation is the average distance data is from the
mean 

# data[].attributes.headline
Standard deviation is the amount of spread from the mean
that data has been spread.

# data[].attributes.subject
Standard deviation is the amount of spread from the mean
that data has been spread.

# data[].attributes.headline
Standard Deviation is how far around the mean the set of
numbers are spread.    

# data[].attributes.subject
Standard Deviation is how far around the mean the set of
numbers are spread.    

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Standard deviation is how far away from the mean the data is, it shows how spread out the numbers are.

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The standard deviation is basically how far around the numbers
are spread out.  

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The standard deviation is basically how far around the numbers
are spread out.  

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Standard
deviation is the number that measures how far data values are from their mean. 

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Standard
deviation is the number that measures how far data values are from their mean. 

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Standard deviation is the average distance data is from the mean ������N_veS/

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Standard
Deviation is a measurement of how far scores or other data can differ from the
average. 

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Standard
Deviation is a measurement of how far scores or other data can differ from the
average. 

# data[].attributes.headline
Standard
deviation is the measure of spread, meaning how far around the mean (average)
the numbers are spread. 

# data[].attributes.subject
Standard
deviation is the measure of spread, meaning how far around the mean (average)
the numbers are spread. 

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Standard deviation is the value of how much a set of numbers varies from each other.

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Standard deviation is the average difference from the mean

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Standard deviation is the average difference from the mean

# data[].attributes.headline
Standard deviation is a measure of "spread", how far around the mean numbers are spread out. It shows how far the numbers are from the mean. 

# data[].attributes.subject
Standard deviation is a measure of "spread", how far around the mean numbers are spread out. It shows how far the numbers are from the mean. 

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Standard Deviation is how far away data is from the mean (average)

# data[].attributes.headline
Standard deviation is the average amount a number is a way
from the mean of a set of numbers (so for example, test scores). The lower the
standard deviation, the closer it is to the mean and vice versa.

# data[].attributes.subject
Standard deviation is the average amount a number is a way
from the mean of a set of numbers (so for example, test scores). The lower the
standard deviation, the closer it is to the mean and vice versa.

# data[].attributes.body
Standard deviation is how close to the average something is. If there is a big deviation then a point of data is really far outside of the norm. If there is no deviation there is a really high correlation.

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Standard Deviation is the range. The measure of "spread" to see how far numbers stray from the mean.

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Standard deviation is the average amount that data strays
from the mean.

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Standard deviation is the average amount that data strays
from the mean.

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Standard deviation is a measure of how far away you are from
the mean within significant values. 

# data[].attributes.subject
Standard deviation is a measure of how far away you are from
the mean within significant values. 

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How far a point of measure is from the average (group)