The Backpage: My Favorite Lesson
The Back Page: My Favorite Lesson: Perfect Sample and Population Mean Formula
November 2013, Volume 107, Issue 4, Page 320
Typically, students readily understand the concepts of the sample mean and a discrete random variable X with its probability mass function. However, they find the population mean formula unduly difficult to comprehend. Using a perfect sample, the author guides readers to discover the population mean formula from the sample mean.