Remembering correlation coefficient (1 Viewer)

[*Lozzie*]

hey all does anyone have a quick and easy way of remembering correlation coefficient?????

 

[PC]

You don't have to know how to calculate the correlation coefficient.

All you need to know is really how to use it to compare different sets of data.

If r = 1, then all data points are in a straight line.

If r > 0 then the correlation is direct [when x increases, y increases].
If r < 0 then the correlation is indirect [when x increases, y decreaes].

The larger the value of r, the more correlated the data points are.

That's pretty much it I think.

 

[*Lozzie*]

thanks heaps PC

 

[Mitcho1989]

PC, i hope you're right lol, coz i know nothing about it