Logical Reasoning

PT111 · S3 · Q21 The new agriculture bill will almost

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The new agriculture bill will almost surely fail to pass.

Conclusion

The new agriculture bill will almost surely fail to pass.

Evidence

The leaders of all major parties have stated that they oppose it.

Evaluate

If we were being asked for an assumption or a principle underlying the argument, we'd articulate this If Premise, Then Conclusion linking idea:

If ... Then ... leaders of all major new agric parties have said they bill probably oppose new agric bill won't pass

Since this is Strengthen, though, the answers are usually more conversational than mathematical.

Goal

Let's look for something that strengthens the link between "leaders of all major parties oppose it" and "bill won't pass", or any answer that says something else that increases the plausibility that the new bill won't pass.

21.

Which one of the following, if true, adds the most support for the prediction that the agriculture bill will fail to pass?

  1. Correct

    Most bills that have not

    Why this is right

    This strengthens the link between the Premise and Conclusion. The author was thinking, "If the leaders of all major parties oppose this, then it probably won't pass." And this says, "In the past, most bills that the leaders of all major parties opposed didn't pass." If we were predicting that Mark probably order the baked potato when we go to Wendy's, it strengthens that prediction if it's true that, "most times Mark has gone to Wendy's, he ordered the baked potato." In formal terms, if you know Most A's are B and you know X is A you can conclude X is probably B In this argument, (A) Most unsupported bills don't pass. Prem The new agric bill is unsupported. Conc The new agric bill will prob not pass

    Skill tested: Strengthen · how this choice captures the argument's function is the move to repeat next time.

    58% picked this

  2. Most bills that have not

    Wrong Order / Less Impact

    This does more than nothing, but way less than (A), because the order of the ingredients in this Most claim. As we mentioned in (A), this is the correct way to build an argument with most. Prem: Most A's are B Prem: X is A Conc: X is probably B For example, Most Senators are men. Murphy is a Senator. Thus, Murphy is probably male. Consider how weak the argument becomes if we reverse the relationship of the Most statement to the other premise. Most Senators are men. Murphy is a man. Thus, Murphy is probably a Senator. Before, we were reading the Most statement forward. If I know someone is a Senator, then they are probably a man. Now, this 2nd premise is trying to read the Most statement backwards. Knowing someone is a man does not tell me that they are probably a Senator. This is what the argument provided Most A's are B X is A This bill is unsupported. So, X is probably B This bill probably won't pass. The top line should say what? "Most unsupported bills don't pass" This answer choice, meanwhile, says "Most bills that don't pass are unsupported"

    7% picked this

  3. If the leaders of all

    Illegal Opposite

    This argument's logic was If the leaders of all major then the bill will parties oppose the bill not pass This answer choice's logic is an illegally inverted version of that. If the leaders of all major then the bill will parties endorse the bill pass

    10% picked this

  4. Most bills that have been

    Opposite, if anything

    If this answer said that most bill that have passed into law were unanimously supported by the leaders of all major parties, that would strengthen somewhat. We'd think, "Wow, usually a bill that passes has 100% support. Since this new agric bill has 0% support, it doesn't seem like the typical bill that passes. So it probably won't pass." Since this answer is saying most passed bills are not unanimously supported, this is going the wrong direction. If this went all the way to saying, "most passed bills didn't have the support of any major leaders", then it would be a huge weakening idea.

    1% picked this

  5. Most bills that have been

    Weak Impact

    This somewhat increases the plausibility of the conclusion, because this new agriculture bill is not supported by at least one leader, so it were it to pass, it would have a quality that is atypical for bill that pass. But it's a very weak strengthener. It doesn't fit the "Most math" this argument is trying to do. good argument (the bad argument we get here) Most A's are B Most passed bills are supported X is A This new bill is unsupported X is probably B This new bill likely not pass. Returning to our earlier example argument might help demonstrate why this answer is so much weaker than the correct one. Premise: Murphy is a Senator. Premise: ? Conclusion: Murphy is probably male. If we're trying to make the move from "if Senator, then probably male", then we want to know Premise: Murphy is a Senator. Premise: Most Senators are male. Conclusion: Murphy is probably male. Consider how much weaker this argument is, if we make the second premise match this answer choice. Premise: Murphy is a Senator. Premise: Most females are not Senators. Conclusion: Murphy is probably male.

    23% picked this

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