how is the data point to be valid what is the % that is the standard deviation for an average? what is the meaning of the +5% deviation from the average in the sd test? what is the difference in 5% and 5% how to tell if a statistic is valid what is a +5% deviation from the average what is the +5 % deviation from the average mean? +/- average data points meaning what is the difference between average and average? what does 5% deviation from normal mean what is the average of the data points? what does the % deviation of the standard deviation of the standardized standard deviation mean? how to check if the data point is valid why is it called +/- a reasonable average how to test if a data point is valid for the purpose of data sampling? what does average mean in math how to check if data is valid 5% deviation is the average variance what is the +/- of median for the average what is the average deviation in a data set?