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All Labrador retrievers bark a great deal. All Saint Bemards bark infr
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Author:  aaba [ 25 Apr 2018, 09:00 ]
Post subject:  All Labrador retrievers bark a great deal. All Saint Bemards bark infr

All Labrador retrievers bark a great deal. All Saint Bemards bark infrequently. Each of Rosa's dogs is a cross between a Labrador retriever and a Saint Bernard. Therefore, Rosa's dogs are moderate barkers.

Which one of the following uses flawed reasoning that most closely resembles the flawed reasoning used in the argument above?


(A) All students who study diligently make good grades. But some students who do not study diligently also make good grades. Jane studies somewhat diligently. Therefore, Jane makes somewhat good grades.

(B) All type A chemicals are extremely toxic to human beings. All type B chemicals are nontoxic to human beings. This household cleaner is a mixture of a type A chemical and a type B chemical. Therefore, this household cleaner is moderately toxic.

(C) All students at Hanson School live in Green County. All students at Edwards School live in Winn County. Members of the Perry family attend both Hanson and Edwards. Therefore, some members of the Perry family live in Green County and some live in Winn County.

(D) All transcriptionists know shorthand. All engineers know calculus. Bob has worked both as a transcriptionist and as an engineer. Therefore, Bob knows both shorthand and calculus.

(E) All of Kenisha's dresses are very well made. All of Connie's dresses are very badly made. Half of the dresses in this closet are very well made, and half of them are very badly made. Therefore, half of the dresses in this closet are Kenisha's and half of them are Connie's.

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Author:  DAVEexamPAL [ 20 May 2018, 23:32 ]
Post subject:  All Labrador retrievers bark a great deal. All Saint Bemards bark infr

The answer is B.
The structure of the argument is: "x is a, y is not a, z is a mix of x and y > therefore it is somewhat a.
(x = labrador, y = saint bernard, a = bark a lot)
This is exactly the structure of B (x = type A, y = type B, a = toxic)

Author:  er.arun88 [ 21 May 2018, 02:01 ]
Post subject:  Re: All Labrador retrievers bark a great deal. All Saint Bemards bark infr

This is how we can do the conparison:

All Labrador retrievers bark a great deal.equivalent to :All type A chemicals are extremely toxic to human beings.
All type A chemicals are extremely toxic to human beings. :All type B chemicals are nontoxic to human beings.
Each of Rosa's dogs is a cross between a Labrador retriever and a Saint Bernard. ,:::This household cleaner is a mixture of a type A chemical and a type B chemical
Therefore, Rosa's dogs are moderate barkers. :: Therefore, this household cleaner is moderately toxic.

Author:  AkshdeepS [ 27 May 2018, 04:46 ]
Post subject:  Re: All Labrador retrievers bark a great deal. All Saint Bemards bark infr

aaba wrote:
All Labrador retrievers bark a great deal. All Saint Bemards bark infrequently. Each of Rosa's dogs is a cross between a Labrador retriever and a Saint Bernard. Therefore, Rosa's dogs are moderate barkers.


Which one of the following uses flawed reasoning that most closely resembles the flawed reasoning used in the argument above?


(A) All students who study diligently make good grades. But some students who do not study diligently also make good grades. Jane studies somewhat diligently. Therefore, Jane makes somewhat good grades.

(B) All type A chemicals are extremely toxic to human beings. All type B chemicals are nontoxic to human beings. This household cleaner is a mixture of a type A chemical and a type B chemical. Therefore, this household cleaner is moderately toxic.

(C) All students at Hanson School live in Green County. All students at Edwards School live in Winn County. Members of the Perry family attend both Hanson and Edwards. Therefore, some members of the Perry family live in Green County and some live in Winn County.

(D) All transcriptionists know shorthand. All engineers know calculus. Bob has worked both as a transcriptionist and as an engineer. Therefore, Bob knows both shorthand and calculus.

(E) All of Kenisha's dresses are very well made. All of Connie's dresses are very badly made. Half of the dresses in this closet are very well made, and half of them are very badly made. Therefore, half of the dresses in this closet are Kenisha's and half of them are Connie's.

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