Question

A scatter plot contains a trend line with a slope of -1/10. Does this trend line illustrate a correlation? And I will give a medal

Answer 1

Can u help me mathmale?

Answer 2

The problem you've shared is pretty general, especially if there's no scatter plot to share with me or other potential helpers.

All that the problem statement tells me is that a regression analysis was done and the resulting regression line slope turned out to be -1/10 (which indicates that y does depend on x). What is really important here is the correlation coefficient, r. I assume your problem statement doesn't include that info.

Answer 3

so my answer would be there is not enough information\\\

Answer 4

Without more information, all I we could safely conclude, I think, is that there appears to be a linear correlation between x and y, but that we have no idea of how strong that relationship is.

Answer 5

The slope of the line is related to the correlation, but other info is needed. So just from the slope, there is no way to say that there is a strong correlation. All we know is that the relationship is negative: as x goes up, y goes down. It is not a steep line. slope = r(sy/sx). You would need the two standard deviations to answer the question properly.

Answer 6

my answers I have are: yes, there is a positive correlataion, yes, there is a negative correlation, no there is no correclation or there is not enough info

Answer 7

Not enough info

Answer 8

No, Punk-C, you have a negative correlation. As x increases, y decreases. You do not have a positive correlation here. As before, I believe there is a correlation, but we do not know how strong it is...or how weak. Be as specific as you can in writing verbal responses to questions like this one. Good luck!

Answer 9

Yes, exactly as @mathmale said, the correlation is negative because it always has the same sign as the slope. But we can't tell the strength of the correlation.

Answer 10

(The correlation could be -0.1 but still negative, and extremely weak.)