Question 1036440
you need to calculate the sum of squares.
from that you can get the variance.
from that you can get the standard deviation.


the sum of squares is the sum of the square of the difference between each data element and the mean.


the variance is the sum of squares divided by the number of elements in the data set.


the standard deviation is the square root of the variance.


these rules apply to the population statistics only.


sample statistics divide by 1 less than the number of elements.


the attached excel spreadsheet shows you the details of what i mean.


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