Problem
In a certain county, 27% of registered voters are Republicans, 20% are Democrats, and the rest are Independents. 34% of Republicans oppose increased military spending, while 68% of the Democrats and 56% of the Independents oppose it. A registered voter writes a letter to the county paper, arguing against increased military spending. What is the probability that this voter is a Democrat?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.