At Morris University this semester

Answer choices

1. A

   Bad Conclusion Match4% picked this

   Most of the paintings on display at the Metro Art Museum are from the twentieth century, but most of the paintings the Metro Art

   We do have two Most premises, but the conclusion isn't saying that one quantity is bigger than another, so there's no reason to dig deeper here.

   4%
2. B

   Bad Premise / Conclusion Match5% picked this

   In an opinion poll of Silver Falls residents, more said they were in favor of increased spending on roads than said they were in

   There's only one premise, so that's an immediate deal breaker. The conclusion also isn't saying that one quantity is bigger than another (it's saying, "most people prefer one thing over another").

   5%
3. C

   Bad Premise Match12% picked this

   In the San Felipe city arboretum, most of the trees are of local rather than exotic species. Therefore, in the San Felipe area, there

   There's only one premise, so that's an immediate deal breaker. The conclusion, to its credit, is lovingly saying that one quantity is bigger than another.

   12%
4. D

   Correct63% picked this

   Most of the vegetables available at the Valley Food Co-op are organic, but most of the vegetables available at the Jumbo Supermarket are not.

   Why this is right

   From a bird's eye view, it's got two Most premises and a conclusion that compares quantities. Here's how it would match with the original argument. Most SOC are taking Intro to SP Most available veggies at VCF are organic. Most PSY are not taking Intro to SP Most available veggies at JS are not organic. So, more SOC than PSY are taking Intro to SP More VFC veggies than JS veggies are organic Both arguments are vulnerable to the objection, "What if one of those groups is much bigger? If Jumbo Supermarket sells 1000 vegetables, but Valley Co-op sells 100, Valley Co-op sells a minimum of 51 organic. Jumbo sells a maximum of 499 organic. So there might be more organic vegetables available at Jumbo.

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

   63%
5. E

   Weaker Match16% picked this

   The Acme Realty website has photos of most of the houses, but of fewer than half of the condominiums, that Acme is offering for

   This one is very close. There are two Most premises (if we hear the first two claims as "most houses for sale have a website photo" and "most condos for sale do not have a website photo"), and the conclusion is indeed a quantitative comparison. And this is also vulnerable to the "what if one group is much bigger" objection. If there are 1000 condos for sale, and only 100 houses for sale, then at least 51 of the houses would have photos on the site and at most 499 condos would have photos on the site. A matching conclusion, though, would have said, "So there must be more photos of houses on the website than there are photos of condominiums." This conclusion went one level farther by talking about the total number of houses / condos for sale. This argument is also vulnerable to a different kind of objection, one that isn't mathematical in nature, but Causal Hey, author, maybe there aren't fewer condo photos on the website because there are fewer condos for sale but just because website pictures of condos aren't as sexy as website pictures of houses.

   16%