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Copyright ? 2010 Pearson Education, Inc. Chapter 2 Data Copyright ? 2010 Pearson Education, Inc. Slide 2 - 3 What Are Data? n Data can be numbers, record names, or other labels. n Not all data represented by numbers are numerical data (e.g., 1 = male, 2 = female). n Data are useless without their context? Copyright ? 2010 Pearson Education, Inc. Slide 2 - 4 The ?W?s? n To provide context we need the W?s n Who n What (and in what units) n When n Where n Why (if possible) n and How of the data. n Note: the answers to ?who? and ?what? are essential. Copyright ? 2010 Pearson Education, Inc. Slide 2 - 5 Data Tables n The following data table clearly shows the context of the data presented: n Notice that this data table tells us the What
