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Veritas Prep Graphics Interpretation Sample Question #3

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Veritas Prep Graphics Interpretation Sample Question #3 [#permalink] New post 03 Jun 2013, 03:43
Need help understanding this question I found on the Veritas Prep website.
I am new to the GMAT prep and pretty good with Maths/Quantitative but for some reason I am having a problem understanding this question.
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Re: Veritas Prep Graphics Interpretation Sample Question #3 [#permalink] New post 08 Jun 2013, 20:47
Hey,

1) So right now, as S increases, we can see that L increases.
(Equivalently, in terms of the graph, as the S values increase, the circle sizes increase).
I would have to see the options to know the correct answer, but hopefully that logic will help you choose the correct one.

2) The largest circle would be A, since it's the smallest circle before inverting the relationship (Smallest to Largest becomes Largest to Smallest)

3) So, as before, if we change A-->D to be in decreasing order of size, we see that they get smaller as F increase.
So, F and L would have an inverse correlation, just like S and L.

4) Again from previous questions, there is an inverse correlation.

5) Since only the sizes of circles change (as opposed to the positions), there is still a direct correlation between F and S.
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Re: Veritas Prep Graphics Interpretation Sample Question #3 [#permalink] New post 12 Jul 2013, 12:46
1 - Size of circle would be inversed
2 - A
3 - Positive relation
4 Negative
5 - Positive
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Re: Veritas Prep Graphics Interpretation Sample Question #3 [#permalink] New post 14 Jul 2013, 06:44
Hi,

A good quality question. Here the three variables are F, S and L. From the given graph, all the three variables have positive correlation.

Now, the questions inverses the relationship between S and L. As S increases, L would decrease and vice-versa. But it does not talk about F. Hence, keeping F constant and changing the relationship between S and L, the graph would become downward sloping circles (currently upward sloping).

Answers:

1. Position of the circles. E.g Circle D would come down on Y axis and circle A would go up on Y axis. No change in X axis and the size of the circles

2. D (no change). The answer will the same because F is constant here. The answer should not change the relationship between L and F.

3. Positive (no change)

4. Negative

5. Positive (no change).

Suggestions/comments are welcome.

Thanks,
Ari
Re: Veritas Prep Graphics Interpretation Sample Question #3   [#permalink] 14 Jul 2013, 06:44
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