Error bars illustrate the margin of error for a survey estimate by showing how precise that estimate is. Here are some answers to common questions that might help you better understand charts with ...

Purpose: Students will collect, organize, and graph data. Objectives: Students will produce a bar graph including a data box accurately reflecting data collected in class from peers.

From the bar graph above, the main points are: Each bar has its own label on the horizontal axis There is a scale on the vertical axis The bars are of equal width ...

Can the users of financial statements and annual reports rely upon the charts in them for accuracy? A sample of 50 public companies' yearly reports ...