Exam PA · Data Exploration and Visualization · Free Lesson

Apply the key principles of constructing graphs.

Free SOA Exam PA (Predictive Analytics) lesson in Data Exploration and Visualization. 10 min read, ~1,529 words.

Three ways a graph goes wrong. Kieran Healy frames bad graphs as failures of taste, of substance, or of perception. A taste problem is chartjunk: gratuitous 3D, gradients, and clip-art that add ink but no meaning. A substantive problem misleads about the data, like a y-axis that starts above zero...

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