difference between mean of sample and normal what is the use of a sample mean difference between median and sample mean what does the sample mean mean difference between mean and average what is the difference between sampling mean and mean in statistics what is the difference between sample mean and mean what is the difference between a normal and a sample mean difference between the mean and sample mean what is the difference between a normal and a sample mean what is the difference in mean and sample mean what is the difference between a sample mean and the mean difference between mean and sample mean in statistics what is the difference between mean of sample and mean of variable how to tell the difference between a sample and a median what is the difference between the mean and sample mean of data which is a difference between a sample mean and a mean? what is the difference between a sample mean and the mean of various samples? difference between sample mean and mean what is the definition of sample mean