Log-in to bookmark & organize content - it's free! Using examples, journalist Alberto Cairo talked about ways that data, charts and visualization are represented and interpreted. He discussed ...

Data can be presented in many ways that make it quicker and easier to read. In this section we will look at some of these ways. It is important to choose the best way to present data. A line graph can ...

“Eating Cheese Before Bed May Cause Nightmares, Study Finds,” reported People Magazine this summer. The same research on food intake and sleep prompted this take from Time Magazine: “Is Cheese Giving ...

Now, let's tackle the task of finding the indicated z-score shown in a graph. This usually involves being given an area under the standard normal curve and needing to find the corresponding z-score.