Editing Statistics and Statistical Programming (Winter 2021)/Problem set 7 (section)

=== PC6. Calculate baseline population proportions for relevant race/ethnicity categories ===

To help interpret the results of the foregoing analysis of the traffic stop data, we should calculate some baseline population proportions of the same race/ethnicity categories in the state of Washington around the same time that the SOPP data comes from. Luckily, we have access to exactly the data we need to do this via our old friend, the <code>openintro</code> library! 

Use the <code>county_complete</code> dataset from the <code>openintro</code> library to calculate the proportions of the Washington population in 2010 in each of the categories identified in the <code>subject_race</code> variable of the traffic stop dataset. You will want to use the [https://www.openintro.org/data/index.php?data=county_complete codebook] for the dataset to identify the variables you'll need. You will also need to wrangle the data a bit to produce the proportions we're looking for. Be sure to note and justify any assumptions and/or recording decisions that you make along the way.