You can choose your own set of data it just needs to be two data sets
Begin the project by identifying an area of interest that you would like to analyze. Then, begin researching public data sets that are available in that area. Focusing on the data that is available, select a specific problem or phenomenon that you would like to analyze. Select a minimum of two data sets to download and use for your analysis.
Load your data into a spreadsheet for analysis. Review the data to be sure you understand the different values and to be sure it all aligns with your expectations. Make any edits necessary to improve your data for analysis.
Create a new statistic from your data that will help you in your analysis. Do a brief analysis of this statistic and find the descriptive statistics for it: mean, median, standard deviation, max, min.
Using Tableau, create four visualizations that help you understand the phenomenon or problem. At least one visualization must include data from both data sets. At least one visualization needs to include the new statistic you developed in the previous step. You may want to peruse Tableau public or other visualizations to help you determine the best visualizations to use. Create a Tableau dashboard that links all of these visualizations together.