Is this statement an example of paired unusual event/ method of difference reasoning or common variable principle/ method of agreement reasoning? fund-raising director for a public radio station: "i know that our music director hates it when we play classical music. but go back and look at our most successful fund drives; every big day has been a day heavily loaded with classical music."

Abrief, "first-step" presentation of a work to be completed is called a

“dear sir: it is with great reluctance, i trouble you on a subject, which does not fall within your province; but it is a subject that occasions me more distress, than i have felt, since the commencement of the war; and which loudly demands the most zealous exertions of every person of weight and authority, who is interested in the success of our affairs. i mean the present dreadful situation of the army for want of provisions, and the miserable prospects before us, with respect to futurity. it is more alarming than you will probably conceive, for, to form a just idea, it were necessary to be on the spot. for some days past, there has been little less, than a famine in camp. a part of the army has been a week, without any kind of flesh, and the rest for three or four days. naked and starving as they are, we cannot enough admire the incomparable patience and fidelity of the soldiery, that they have not been ere this excited by their sufferings, to a general mutiny or dispersion. strong symptoms, however, discontent have appeared in particular instances; and nothing but the most acitive efforts every where can long avert so shocking a catastrophe.” what’s the central idea?

  following the agreement that was reached in the treaty of indian springs in 1825, chief william mcintosh lost his life. why did this happen