Identify the conclusion and say whether the argument appeals to the Method of Agreement, the Method of Difference, the Joint Method of Agreement and Difference, or correlation. In some cases, the conclusion may be implied but not stated. State whether the argument is strong or weak. The price of a barrel of oil on the world market has hit $40 only 12 times in the last 30 years. Sometimes major world economies were in recession, and sometimes they weren't. Sometimes there was an increase in the average fuel consumption of cars, sometimes not. War has been the only constant