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Ready to practice? Each module will have a few exercise videos at the end. In these videos I will first explain the question to you. Then you will have to start analysing the data on your own in order to answer the question. Really try to do this! After all, this is the best way to learn. After you are done, continue watching and you will find the solution and an explanation in the rest of the video. Good luck! Inez Zwetsloot