Math Statistics help! Correlation Coefficient?

Question

Please help me answer this one problem. I am almost done with my homework and I'm stuck on the last problem.





Suppose you calculate the sample correlation coefficient, r, for a pair of variables, x and y, and determine that the answer is 2.004. What does the value of r suggest about the paired data?






please help! i missed class the day we learned this stuff because i didnt feel well. I have been teaching this stuff to myself for the last 4 hours. Can someone please help so I can be done already? thanks. you dont even have to tell me the answer, sites or anything will help! thanks =]

Answer 1

the correlation coefficient can be any value between -1 to 1



if the value is 1, it is already an exact fit. (so greater than 1 means, more than the exact fit! ... but this is not possible .. . .)



you made a mistake in your calculations ...

if the coefficient is 1 ... exact fit

close to 1, it is highly correlated

close to 0, they are uncorrelated

close to -1, they are inversely correlated



http://mathworld.wolfram.com/CorrelationCoefficient.html

.. . .. .

Answer 2

Correlation coefficients range from ___ to ___. A correlation coefficient suggest the ___ and ___ of the relationship between variables. A correlation of ___ indicates a perfect positive relationship; ___ indicates a perfect negative relationship; and ___ indicates that there is no linear correlation between the variables.

Answer 3

you virtually dont ought to compute some element - r=0.981 is so severe that it must be tremendous yet we are waiting to experiment r using the t-statistic t=r/(sqrt((a million-r^2)/(n-2)) = the position n is pattern length and (n-2) is the ranges of freedom so t=.981/(sqrt((a million-.981^2)/23)) = 24.25 so it truly is amazingly stat. Sig.