Question

picture posted

Answer 1

@Psymon @ybarrap @phi

Answer 2

@mathmate

Answer 3

Well, a straight with a positive slope would be a 1, so youre not going to have B, C, or E. Now its just doesyour scatter plot look closer to kind of being like a line or being all over the damn place with no correlation.

Answer 4

right

Answer 5

Add this to Psymon's comments.
A zero correlation will not reveal any direction. If you can see any trend, the correlation coefficient should not be zero.
Also, a positive correlation has a positive slope, and vice versa.

Answer 6

no its a positive weak correlation for sure

Answer 7

ohh really? it doesn't reveal a direction?? so then.. what could it be?

Answer 8

I really thought it was A, but that's not right

Answer 9

I would have guessed the .75 one, simply because you can kind of see how thered be a positive correlation. Id think .25 would be way more random than what you have there.

Answer 10

yes. so u think its .75?

Answer 11

@mathmate what about u ? what do u think?

Answer 12

I do, yes.

Answer 13

0.75 is a moderate correlation.
Unless my screen is deformed, I don't see it being moderate. But then they do not give many other choices.

Answer 14

I figured closer to .75 than .25.

Answer 15

neither do I.. but I guess that's the answer then

Answer 16

@mathmate ?

Answer 17

Go with Psymon and see what happens.

Answer 18

.. this should be right.. because its a big part of my grade :(

Answer 19

im submitting it now

Answer 20

I wish that logic worked out all the time. The key word being SHOULD I mean. If everything that was a big part of my grade forced things to be correct, then thatd be awesome.

Answer 21

.. I mean that I hope its right.. I mean its not even funny.. I just really want it to be right :(

Answer 22

Sorry x_x

Answer 23

.75

Answer 24

Visually estimating correlation coefficient:
http://youtu.be/PXcJmHRPmto