ARGUMENTATION - 5
Source: Economist - firstname.lastname@example.org
SPECIFIC EVENT: death of commerce secretary Ron Brown
SPECIFIC VARIABLE: % black voters for Democrat
SPECIFIC QUESTION: "What will the loss of the administration's most prominent black do to its appeal among black voters?"
SPECIFIC ANSWER: "The chart shows why this question is so little debated. The black vote is astonishingly loyal to the Democratic party."
GENERIC QUESTION: will an event change a variable significantly?
GENERIC POSSIBLE ANSWERS
COMMENT: this chart raises the question of what constant means. the percentage of black voters voting democrat changes a lot in the interval 80%-100%, but these changes are not considered in the article. This shows that "constant" can have (be used with) different meanings in different contexts.