LSAT 2 – Section 4 – Question 05

LSAT 2 - Section 4 - Question 05

October 1991

You need a full course to see this video. Enroll now and get started in less than a minute.

Target time: 1:09

This is question data from the 7Sage LSAT Scorer. You can score your LSATs, track your results, and analyze your performance with pretty charts and vital statistics - all with a Free Account ← sign up in less than 10 seconds

Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT2 S4 Q05
+LR
Weaken +Weak
A
3%
154
B
87%
160
C
4%
153
D
3%
153
E
4%
156
120
129
146
 +Easiest 145.613 +SubsectionMedium
This page shows a recording of a live class. We're working hard to create our standard, concise explanation videos for the questions in this PrepTest. Thank you for your patience!

Here we have a weakening question, indicated by: Which one of the following, if true, would tend to invalidate use of the ratings for the agency’s purpose?

So we’ve got a government rating system where the highest ranked airlines are the ones with the lowest proportion of late flights. So the number one airline would be the one whose ratio of total flights to late flights is the lowest. From the question stem, we know we want to weaken the agency’s reasoning for why this rating would be good for their purpose. We’re next told what this purpose is; the agency thinks the rating can establish an objective measure of the efficiency of the airlines personnel in meeting flight schedules. So the conclusion we want to weaken here is that the proportion of late flights actually represents how efficient the staff of each airline are. We can think of this as hypothesis; the agency believes the reason airlines have more or less late flights is the efficiency of their staff. A good answer choice will be one which introduces an alternate explanation for why airlines are late. On to the answers:

Answer Choice (A) Ok, but this wouldn’t affect whether the staff are what determine flights being late.

Correct Answer Choice (B) If flights are often made late by weather, and some airlines are more affected than others, then it is unlikely the rating would be representative of staff performance because a lot of the time it’s out of their control.

Answer Choice (C) This gives us a reason why being late isn’t always the end of the world, but has no bearing on whether the lateness of flights reflects staff performance.

Answer Choice (D) This is totally compatible with what we want to weaken.

Answer Choice (E) Who cares how we define a late flight? Our interest is in whether lateness represents inefficiency on the part of flight staff.

Take PrepTest

Review Results

LSAT PrepTest 2 Explanations

Section 1 - Reading Comprehension

Section 2 - Logical Reasoning

Section 3 - Logic Games

Section 4 - Logical Reasoning

Get full LSAT course

Leave a Reply