carcass wrote:
Based on what I read on Mba.com nothing says about regression line. please tell us about this argument but with concrete link example and so on.
Otherwise would be concerned...
By the way I 'd have another question: is true that if you take 0 on IR this affects your quant score ?? is possible??
thanks
charlemagne, carcass and other friends,
Apologies for replying late.
Ok, I got to see a question on 'regression' here:
https://www.mba.com/the-gmat/nex-gen/sam ... 1?next=yesBut don't worry. The questions are very simple. I felt many test takers might be confused to see the term and might find the question beyond their reach.
The questions speaks of a 'regression line', which by definition is termed as
regression of y on x - the equation representing the relation between selected values of one variable (x) and observed values of the other (y); it permits the prediction of the most probable values of y
In the question, there is a scatter plot. We have values of y for values of x. The regression line tries to determine a pattern here, so that I can predict a value of y for a given value of x. That's it.
The question only asks how water and air temperature are correlated. The upward sloping line suggests that they are positively correlated.
Do ask again if you feel it's not clear. I'd be glad to help.
Regards,
Shouvik.