can you average an average
Mx = M M is the greek letter mu, by the way. Statistically speaking, an average of averages within a sample is said to very closely approximate the population average. However, where the sample size is under 30, there needs to be an adjustment for size.he mean is the average you're used to, where you add up all the numbers and then divide by the number of numbers. The median is the middle value in the list of numbers. To find the median, your numbers have to be listed in numerical order, so you may have to rewrite your list first.