Lesson Two
Lesson
Introduction <br> You will often encounter data that is incomplete or in which people have made mistakes getting the data from reality onto the computer. <br> In this lesson, we will: Learn strategies for recognizing some typical problems with datasets Learn how to verify whether suspicious values are correct — or at least plausible. You will also see the importance of knowledge about the context. That is, if you’re looking at data about Sudan, you should use your knowledge of Sudan to help you make sense of the data and identify and explain problems.