Here's another assumption question, so let's start by identifying the conclusion, exactly in the author's own words: "The free skier safety courses that have been offered by the resort for the past ten years must be improved or eliminated."
At first glance, the last sentence might seem like the conclusion. After all, it's at the end of the passage and sure
looks like a conclusion. In these situations, it can be helpful to ask yourself, "What is the author trying to do with this passage?" Does the author simply want to reader to think that resort wastes thousands of dollars each week running these ineffective courses? Or does the author want the reader to believe that the courses should be improved or eliminated?
Notice that the last sentence SUPPORTS the first sentence: The resort wastes thousands of dollars running these ineffective courses; THEREFORE, the courses should be improved or eliminated. That makes more sense than: The courses should be improved or eliminated; THEREFORE, the resort wastes thousands of dollars running the courses. The first sentence does not SUPPORT the last sentence.
What other evidence is presented to support the conclusion?
- First, we are given some background information describing the courses: They "are designed to encourage safe skiing and reduce the risk of collisions and injuries."
- The courses "have always been free, highly publicized, and offered at various times throughout the week to accommodate a wide variety of scheduling needs." This evidence suggests that it is unlikely that skiers did not attend the courses because the skiers did not want to pay for the courses, because the skiers did not know about the courses, or because the skiers had scheduling conflicts.
- "Skiers who completed the course were just as likely to be involved in a collision as skiers who did not complete the course." - this seems to suggest that the courses are not effective.
- "The resort wastes thousands of dollars each week running these ineffective courses." - If the courses are ineffective, as suggested by the previous sentence, then that money would surely be a waste. Therefore, the courses should be improved or eliminated.
Now that we understand the structure of the author's argument, which of the answer choices is an assumption on which the argument depends?
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(A) The skier safety courses could be improved without substantially increasing the program's budget.
The author simply concludes that the courses must be improved or eliminated, without suggesting how the courses could be improved or how the resort would pay for such improvements. (A) can be eliminated.
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(B) There are other methods besides offering skier safety courses that are more effective in reducing the risk of skier collisions and injuries.
It's possible that there is NO other method that is more effective in reducing the risk of skier collisions and injuries than the courses that are currently offered. If those courses are the MOST effective method and they are not effective, then this further supports the author's conclusion that the courses must be improved or eliminated. (B) is not a necessary assumption and can be eliminated.
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(C) Skiers who completed the course are no less likely to be involved in a collision than they would have been if they had not completed the course.
The following sentence seemed to suggest that the courses are ineffective: "Skiers who completed the course (Group A) were just as likely to be involved in a collision as skiers who did not complete the course (Group B)." But perhaps the skiers who did complete the course (Group A) would have been MORE likely to be involved in a collision if they had not taken the courses. In other words, without the course, skiers in Group A might have been MORE likely to be involved in a collision than skiers in Group B. However, thanks to the courses, Group A skiers are now only just as likely to be involved in a collision as Group B skiers. This is evidence that the courses ARE effective and disrupts the author's logic. Choice (C) represents a necessary assumption, so let's keep it.
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(D) There is no way to reduce the current costs of running the mountain safety courses.
Even if the costs were reduced, the author's argument would still hold. If the courses do not make any difference to skier safety, why should the resort spend ANY money on them? (D) is not a necessary assumption and can be eliminated.
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(E) Even though the courses are free, most skiers would prefer not to spend their time attending a safety course.
This assumption would actually hurt the author's argument. If this statement is true, it would be evidence that skiers are simply not attending the courses. In that case, the author's evidence would be irrelevant and we wouldn't know whether the courses are effective. Perhaps the resort simply needs to offer incentives to encourage skiers to attend the courses. (E) can be eliminated.
(C) is the best choice.