In this lesson, we are going to be talking about stem plots. We are going to talk about them because they are another kind of visualization - what sets them apart from other kinds of ways that you could visualize a distribution, what do they look like and how do we construct one. Stem plots are not frequently used but they are sometimes used in tests and classes, which is why we're covering them in this lesson. If you are working with very large data sets, stem plots would not be very useful to you. If you are actually trying to work with data, you might want to get this lesson.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
This book provides a clear and methodical approach to essential statistical procedures. It clearly explains the basic concepts and procedures of descriptive and inferential statistical analysis. This book features a new emphasis on expressions involving sums of squares and degrees of freedom as well as a stronger stress on the importance of variability.