A text written in an unknown language was recently discovered and then

­Is it true, when more than 75% of the data are correlated we can infer as correlation?
Also is it applicable in all of the gmat sections, or data insight only??
Please respond Asap.
Thank you.
And how do I tag the prominent leader of GMAT? any suggestion.

Fairly straightforward. Just by observing the pattern and counting the no. of times the increase/decrease pattern matches.

<quote option="&quot;bhavyatayal1833&quot;">A text written in an unknown language was recently discovered and then digitized and analyzed. The analysts divided the text into 7 sections- Sections A through G—and computed word frequencies by section for each word in the text. The table shows these frequencies for Words 1 through 6. For instance, the table shows that Word 1 appeared 1 time in Section A, and 10 times in Section C.<br />
<br />
The analysts consider two words to be <i>correlational</i> if their frequencies in the 7 sections of the text were positively correlated.<br />
<br />
For each of the following pairs of words, select <i>Yes</i> if the information provided suggests that the analysts would consider the two words correlational. Otherwise, select <i>No</i>.<br />
<br />
<align option="center" style="text-align:center;"><b>Frequency of Certain Words, by Section</b></align><br />

Word
Section	1	2	3	4	5	6
A	1	2	2	12	7	6
B	2	4	3	2	6	10
C	10	5	8	6	3	4
D	4	7	7	7	5	12
E	3	9	5	14	4	5
F	1	11	4	5	2	3
G	0	12	1	2	1	0

<br />
<br />
­</quote>­Let us not sort the table. We will study the relation of 6 rows A-B, B-C, C-D, D-E, E-F, and F-G. A will have the base or initial value (of frequency) for each word.<br />
1. <b>Word 1 and 3</b>: Pick columns 1 and 3. We will consider section A i.e. the first row as the base or initial value with which we will compare the next rows whether they are increasing or decreasing. Notice, the values in row B increase from their respective values in row A. In row C, again there is an increase from their respective values in row B. This means the values in both columns 1 and 3 will either increase or decrease from their last values which suggests a correlation. <b>Yes</b>.<br />
2. <b>Word 3 and 5</b>: Pick columns 1 and 3. Row A has the base values. In row B, the value in word 3 increases but for word 5, it decreases. The same happens in row C. In row D, the value of word 3 decreases but word 5 increases. The other 3 rows are correlated. But what's the point when 3 out of 6 rows are not? <b>No</b>.<br />
3. <b>Word 5 and 6</b>: Pick columns 5 and 6. Only in row B, word 5 decreases but word 6 increases. The other rows will either increase or decrease in correlation. <b>Yes</b>.<br />
<br />
Hope this helps.

How come 5 and 6 positively correlated? 5/7 times this happens which is ~71%, still do we consider them to be positively correlated?

Can you please explain the process for solving this question? I really can't figure it out

Avanito00

See the attached picture. I have added an example for 5 and 6 because that was the most confusing of all.

The question says two words are correlational if they have a positive correlation, i.e. one increases the other also increases or if one decreases the other should too.

We can see 5th word has an increasing trend, and the same way most of the cases of 6 is are also increasing as 5th is increasing. Thus, these two words are correlational. And as rightly said by someone above, if we have over 50% then there is a correlation.

Hi experts chetan2u Bunuel KarishmaB ChiranjeevSingh MartyMurray bb egmat GMATNinja!

How come 5 and 6 positively correlated? 5/7 times this happens which is ~71%, still do we consider them to be positively correlated?

if so, what are the standards (% wise , if any) to call somthing corrleational in GMAT context?

Positively correlated means that majority of A and B move in same direction.
Directly proportional would mean each portion of A and B moves in same direction.

The point is that their graphs should move in a similar direction to be called positively correlated. Every corresponding point need not match.
I have talked about this in detail here: https://youtu.be/Zx-PysHlhGM