• Unit 2: Visualizations of Data

    A picture is worth a thousand words. In Unit 2, you will learn how very true this is. You will learn that every data set has a story to tell, and you will begin the telling of that story by its graphical representation. Just as a photographer chooses the best lighting, pose, and camera setting for conveying an idea or mood, so does the statistician choose the most appropriate graph or chart for best conveying the story that the data are trying to tell.

    In this unit, you will do more than choose the right graph; you will also begin to look behind the scenes to discern some characteristics not obvious to a casual observer. You will use the concepts of center, shape, and spread of a data distribution to get both the bigger picture and the sharper focus of what the data are saying.

    Completing this unit should take you approximately 6 hours.