Unit Test — Unit test Answers

Read the excerpt from Steven D. Levitt and Stephen J. Dubner’s Freakonomics.Let’s now consider the following statistic, which represents the hundreds of matches in which a 7–7 wrestler faced an 8–6 wrestler on a tournament’s final day: 7–7 WRESTLER’S PREDICTED WIN PERCENTAGE AGAINST 8–6 OPPONENT: 48.77–7 WRESTLER’S ACTUAL WIN PERCENTAGE AGAINST 8–6 OPPONENT: 79.6So the 7–7 wrestler, based on past outcomes, was expected to win just less than half the time. This makes sense; their records in this tournament indicate that the 8–6 wrestler is slightly better. But in actuality, the wrestler on the bubble won almost eight out of ten matches against his 8–6 opponent. Wrestlers on the bubble also do astonishingly well against 9–5 opponents:7–7 WRESTLER’S PREDICTED WIN PERCENTAGE AGAINST 9–5 OPPONENT: 47.27–7 WRESTLER’S ACTUAL WIN PERCENTAGE AGAINST 9–5 OPPONENT: 73.4The authors use the statistics in this excerpt to

Read this excerpt from Infinite Jest.‘My application’s not bought,’ I am telling them, calling into the darkness of the red cave that opens out before closed eyes. ‘I am not just a boy who plays tennis. I have an intricate history. Experiences and feelings. I’m complex.‘I read,’ I say. ‘I study and read. I bet I’ve read everything you’ve read. Don’t think I haven’t. I consume libraries. I wear out spines and ROM-drives. I do things like get in a taxi and say, “The library, and step on it.” My instincts concerning syntax and mechanics are better than your own, I can tell, with due respect.What assumption does the narrator make in this excerpt?

Read the excerpt from E.O. Wilson’s “The Environmental Ethic.”Why should we care? What difference does it make if some species are extinguished, if even half of all the species on earth disappear? Let me count the ways. New sources of scientific information will be lost. Vast potential biological wealth will be destroyed. Still undeveloped medicines, crops, pharmaceuticals, timber, fibers, pulp, soil-restoring vegetation, petroleum substitutes, and other products and amenities will never come to light. It is fashionable in some quarters to wave aside the small and obscure, the bugs and weeds, forgetting that an obscure moth from Latin America saved Australia’s pastureland from overgrowth by cactus, that the rosy periwinkle provided the cure for Hodgkin’s disease and childhood lymphocytic leukemia, that the bark of the Pacific yew offers hope for victims of ovarian and breast cancer, that a chemical from the saliva of leeches dissolves blood clots during surgery, and so on down a roster already grown long and illustrious despite the limited research addressed to it.Which techniques does Wilson use in this excerpt to convey important information to his readers?

Read this excerpt from Levitt and Dubner’s Freakonomics. The incentive scheme that rules sumo is intricate and extraordinarily powerful. Each wrestler maintains a ranking that affects every slice of life; how much money he makes, how large an entourage he carries, how much he gets to eat, sleep, and otherwise take advantage of his success. The sixty-six highest-ranked wrestlers in Japan, comprising the makuuchi and juryo divisions, make up the sumo elite. A wrestler near the top of this elite pyramid may earn millions and is treated like royalty. Any wrestler in the top forty earns at least $170,000 a year. The seventieth-ranked wrestler in Japan, meanwhile, earns only $15,000 a year. Life isn’t very sweet outside the elite. Low-ranked wrestlers must tend to their superiors, preparing their meals and cleaning their quarters and even soaping up their hardest-to-reach body parts. So ranking is everything.A wrestler’s ranking is based on his performance in the elite tournaments that are held six times a year. Each wrestler has fifteen bouts per tournament, one per day over fifteen consecutive days. If he finishes the tournament with a winning record (eight victories or better), his ranking will rise. If he has a losing record, his ranking falls. If it falls far enough, he is booted from the elite rank entirely. The eighth victory in any tournament is therefore critical, the difference between promotion and demotion; it is roughly four times as valuable in the rankings as the typical victory.Based on the excerpt, which statement provides the best example of incentive for a sumo wrestler to cheat?

Read the excerpt from Infinite Jest.‘My application’s not bought,’ I am telling them, calling into the darkness of the red cave that opens out before closed eyes. ‘I am not just a boy who plays tennis. I have an intricate history. Experiences and feelings. I’m complex. ‘I read,’ I say. ‘I study and read. I bet I’ve read everything you’ve read. Don’t think I haven’t. I consume libraries. I wear out spines and ROM-drives. I do things like get in a taxi and say, “The library, and step on it.” My instincts concerning syntax and mechanics are better than your own, I can tell, with due respect.What conclusion can readers draw about this character vs. society conflict?

Review the title and image in "As Debris Piles Up, Americans Are Skeptical Enough Will Be Done to Limit Space Junk.”As Debris Piles Up, Americans Are Skeptical Enough Will Be Done to Limit Space Junkby Mark Strauss

Read the excerpt from "As Debris Piles Up, Americans Are Skeptical Enough Will Be Done to Limit Space Junk.”Private companies such as SpaceX, Blue Origin and Virgin Galactic are becoming increasingly important players in space exploration. Many Americans are confident these companies will be profitable, but they’re more skeptical they will keep space clean of debris, according to a recent Pew Research Center survey.

Read the excerpt from Freakonomics. It’s worth thinking about the incentive a wrestler might have to throw a match. Maybe he accepts a bribe (which would obviously not be recorded in the data). Or perhaps some other arrangement is made between the two wrestlers. Keep in mind that the pool of elite sumo wrestlers is extraordinarily tight-knit. Each of the sixty-six elite wrestlers fights fifteen of the others in a tournament every two months. Furthermore, each wrestler belongs to a stable that is typically managed by a former sumo champion, so even the rival stables have close ties. Which of the following claims is best supported by the evidence in this excerpt?

Read this excerpt from Infinite Jest.I cannot make myself understood. ‘I am not just a jock,’ I say slowly. Distinctly. ‘My transcript for the last year might have been dickied a bit, maybe, but that was to get me over a rough spot. The grades prior to that are de moi.’ My eyes are closed; the room is silent.How does the narration affect the narrator’s credibility in this excerpt?

Read the excerpt from Infinite Jest.[Orin] stood there, he says, hefting a cold clod, playing with the Velcro on his puffy coat, watching as the Moms, bent way down to me, hand reaching, her lowering face with its presbyopic squint, suddenly stopped, froze, beginning to I.D. what it was I held out, countenancing evidence of oral contact with same. He remembers her face as past describing.What is the meaning of the excerpt?

Read the excerpt from "The Environmental Ethic." Mother Earth . . . is no more than the commonality of organisms and the physical environment they maintain with each passing moment, an environment that will destabilize and turn lethal if the organisms are disturbed too much. . . . To disregard the diversity of life is to risk catapulting ourselves into an alien environment. We will have become like the pilot whales that inexplicably beach themselves on New England shores.Which of the following choices best expresses the type of appeal Wilson uses in this passage?

Read the following excerpt from E. O. Wilson’s “The Environmental Ethic.”Species are disappearing at an accelerating rate through human action, primarily habitat destruction but also pollution and the introduction of exotic species into residual natural environments. I have said that a fifth or more of the species of plants and animals could vanish or be doomed to early extinction by the year 2020 unless better efforts are made to save them. . . . As the last forests are felled [destroyed] in forest strongholds like the Philippines and Ecuador, the decline of species will accelerate even more. In the world as a whole, extinction rates are already hundreds or thousands of times higher than before the coming of man. They cannot be balanced by new evolution in any period of time that has meaning for the human race.Why should we care? What difference does it make if some species are extinguished, if even half of all the species on earth disappear? Let me count the ways. New sources of scientific information will be lost. Vast potential biological wealth will be destroyed. Still undeveloped medicines, crops, pharmaceuticals, timber, fibers, pulp, soil-restoring vegetation, petroleum substitutes, and other products and amenities will never come to light. Based on the excerpt, which statement best summarizes the author’s beliefs about the disappearing species?

Read the excerpt from Freakonomics. Now let’s look at the win-loss percentage between the 7–7 wrestlers and the 8–6 wrestlers the next time they meet, when neither one is on the bubble. In this case, there is no great pressure on the individual match. So you might expect the wrestlers who won their 7–7 matches in the previous tournament to do about as well as they had in earlier matches against these same opponents—that is, winning roughly 50 percent of the time. You certainly wouldn’t expect them to uphold their 80 percent clip. As it turns out, the data show that the 7–7 wrestlers win only 40 percent of the rematches. Eighty percent in one match and 40 percent in the next? How do you make sense of that?Which type of evidence does the authors use in this excerpt to support the claim that some sumo wrestlers will intentionally lose a match?

Which excerpt from Billy Collins’s “Man Listening to Disc” best reflects the euphoric effect the narrator experiences from listening to music on his headphones?

Read the excerpt from “Death by Black Hole.”If you were made of rubber then you would just stretch in response. But humans are composed of other materials such as bones and muscles and organs. Your body would stay whole until the instant the tidal force exceeded your body’s molecular bonds. (If the Inquisition had access to black holes, this, instead of the rack, would surely have become the stretching device of choice.)Which sentence from the excerpt supports the idea that falling into a black hole would be a violent death?

Read the excerpt from Steven D. Levitt and Stephen J. Dubner’s Freakonomics.The incentive scheme that rules sumo is intricate and extraordinarily powerful. Each wrestler maintains a ranking that affects every slice of his life; how much money he makes, how large an entourage he carries, how much he gets to eat, sleep, and otherwise take advantage of his success. The sixty-six highest-ranked wrestlers in Japan, comprising the makuuchi and juryo divisions, make up the sumo elite. A wrestler near the top of this elite pyramid may earn millions and is treated like royalty. Any wrestler in the top forty earns at least $170,000 a year. The seventieth-ranked wrestler in Japan, meanwhile, earns only $15,000 a year. Life isn’t very sweet outside the elite. Low-ranked wrestlers must tend to their superiors, preparing their meals and cleaning their quarters, and even soaping up their hardest-to-reach body parts. So ranking is everything.Which sentence from the excerpt best supports the idea that the high-ranking sumo wrestlers enjoy many luxuries?

Where is the best place to look for evidence to confirm or correct predictions?

Review the graphs from "Majority of Americans Believe It Is Essential That the U.S. Remain a Global Leader in Space.”