when using deviations from mean does it need to be negative can standard deviation be negative how to find a deviation in revenue analysis how to determine whether a number is negative is standard deviation a negative number why is standard deviation negative can you subtract standard deviation why can you get standard deviations from mean when do i use standard deviations when the standard deviation is negative what is the standard deviation of revenue can you make your standard deviation negative when a standard deviation is negative does it mean the data point is negative why is a standard deviation of revenue negative in statistics? why is it impossible to get one deviation from the mean in a set of digits? when standard deviation of revenues is positive why does a standard deviation of revenue have no negative numbers when using standard deviation of the mean does the standard deviation of revenue include negative numbers can revenue be negative when standard deviation what is standard deviation of a revenue