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Soru

Zorluk: ZorFlaw in the Reasoning

Meteorologist: Historical agricultural data reveals that the regional almond harvest faces critical risk only when the total seasonal volume of rainfall drops below 15 inches. Over the past five years, the percentage of days during the growing season on which any measurable precipitation occurred has decreased by nearly 40%. Consequently, the region must be moving dangerously close to the 15-inch threshold that threatens the almond harvest.

Which of the following most accurately describes a flaw in the meteorologist's reasoning?

  1. A
    takes for granted that the decline in the frequency of precipitation is the primary cause of the critical risk to the regional almond harvest
  2. B
    treats a condition that is sufficient to trigger a critical risk to the almond harvest as a condition that is strictly necessary for that risk to exist
  3. draws a conclusion regarding the overall volume of a resource based solely on evidence concerning the proportion of days it is presentCevap
  4. D
    relies on an ambiguous use of the phrase 'critical risk' by applying it to two entirely different agricultural outcomes
  5. E
    overlooks the possibility that the almond harvest might be negatively impacted by factors other than the total seasonal volume of rainfall

Cevap

The correct option is the one stating that the argument draws a conclusion regarding the overall volume of a resource based solely on evidence concerning the proportion of days it is present.
The meteorologist concludes that the absolute volume of rainfall is dropping dangerously low. However, the only evidence provided is that the frequency (or percentage) of rainy days has decreased. This reasoning is flawed because it treats a rate of occurrence as a proxy for an absolute amount. It is entirely possible for a region to experience fewer rainy days, but for the storms on those days to be significantly heavier, thereby maintaining or even increasing the total seasonal volume of rain.

Adım Adım Çözüm

1
Analyze the structural components of the meteorologist's argument.
Premise 1: The almond harvest faces risk only if total volume drops below 15 inches. Premise 2: The percentage of rainy days has decreased by 40%. Conclusion: The region is approaching the < 15 inches total volume threshold.
Deconstructing the argument into premises and conclusion is essential for spotting the logical disconnect.
2
Examine the relationship between the evidence provided and the conclusion drawn.
The evidence relies on a rate or frequency (the percentage of days with precipitation), whereas the conclusion asserts a claim about an absolute quantity (the total seasonal volume of rainfall).
Many logical flaws stem from a fundamental mismatch between the type of evidence given and the scope of the conclusion.
3
Identify the unstated assumption that makes the reasoning vulnerable.
The argument assumes that a decrease in the frequency of rainy days guarantees a decrease in the total volume of rain, overlooking the possibility that rainfall intensity could have increased on the remaining rainy days.
Pinpointing the specific unwarranted assumption allows us to match it with the abstract descriptions found in the answer choices.
4
Evaluate the options to find the one that accurately describes this specific logical gap.
The option identifying a conclusion about overall volume being drawn from evidence about a proportion of days perfectly encapsulates the numbers-versus-percentages flaw present in the stimulus.
The correct answer in a Flaw in the Reasoning question must accurately and abstractly describe the error committed in the text.

Anahtar Kavram

Confusing rates or proportions with absolute numbers or volumes.
Bu soruyu puanla

Konular

Flaw in the Reasoning

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