Final answer:
Dashboards give a live view of data, while reports draw trends and conclusions. Pie graphs and bar graphs offer visual representation for proportional parts and categorical quantity comparisons, respectively. Line graphs are ideal for illustrating relationships between two variables over time.
Step-by-step explanation:
The answer to the fill-in-the-blank question is: Dashboards give a live view of changing data all in one place while reports pull specific trends and conclusions found in data that can explain the impact and outcome of data analysis. In terms of when to use different types of graphs, a pie graph is appropriate when you need to show how a whole is divided into proportional parts, and each part's relative size is important. For instance, you might use a pie graph when presenting data on market share percentages. On the other hand, a bar graph is more desirable when you want to compare the quantities of different categories and make the differences visually striking. For example, the number of sales achieved by different teams in a company could be effectively communicated with a bar graph.
When using graphs to present data, it's important to avoid potential display problems like misleading scales or omitting units of measure, as these can distort the perception of what the data actually shows. Moreover, when discussing line graphs, we look to illustrate the relationship between two variables that are both changing, such as a time series graph showing the unemployment rate over time. Ultimately, effective data presentation lies not only in choosing the right type of graph but in ensuring accurate representation and interpreting the data to present a balanced analysis, much like the current data and analysis found within formal reports that include various financial and economic data.